A 3D printing device and a printing method thereof for a multi-phase geological model

Abstract

The application discloses a kind of 3D printing device and printing method of multiphase geological model, and printing device includes: printing component, including frame, printing nozzle and moving mechanism, frame defines print room, moving mechanism is connected on frame, printing nozzle is connected with moving mechanism, wherein, moving mechanism is configured as drive printing nozzle can simultaneously or individually perform moving action along the horizontal direction, transverse direction and longitudinal direction of frame;Horizontal direction, transverse direction and longitudinal direction are perpendicular to each other;Bearing component includes push part, which is arranged on one side of the frame, and a plurality of coamings are loaded in the inside, and the push part is configured to push the coaming into the printing room to form a printing cavity for 3D printing;Mechanical arm assembly includes mechanical arm body, cutting part and polishing part, the mechanical arm body is arranged on one side of the frame, the cutting part and the polishing part are arranged at the end of the mechanical arm body, and are configured to polish and cut the 3D model in the printing room.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of 3D printer equipment, in particular to a 3D printing device for a multi-phase geological model and a printing method thereof. BACKGROUND

[0002] The physical model test is an important method for predicting and forecasting geological disasters of large rock mass engineering by simulating the excavation process of natural rock mass engineering. Nowadays, the deep geological structure mainly manifests in the forms of folds, faults, joints and the like, and different forms have certain influences on deep mining and may cause the occurrence of deep engineering disasters.

[0003] In order to reduce the influences of deep engineering disasters, a similar large multi-phase geological model structure is constructed by using the 3D printing technology, and the deep excavation process is simulated by the physical simulation test.

[0004] At present, there are mainly three kinds of common 3D printing methods, which are the fused deposition method, the stereolithography method and the powder forming method. The fused deposition method is a printing method of stacking melted materials layer by layer. In the printing process, the device accelerates the melting of the filament material, and the material is selectively stacked on the platform by the nozzle to form a solid body. The consumable of the stereolithography method is photosensitive resin. Under the action of light of a specific wavelength, the photosensitive resin undergoes a series of physical and chemical changes to form a solid body. The powder forming method sintering the powder by a laser beam to make it combine together. After completing a layer, the next layer is paved, and finally the whole solid body is formed.

[0005] Although the above three kinds of 3D printing methods make the internal structure of the model different, there are still the following technical problems for the large complex multi-phase geological model: (1) the similarity of the geological model with multiple component materials to the actual geological conditions cannot be guaranteed; (2) the uninterrupted printing of the large complex multi-phase geological model cannot be realized, and the printing efficiency is low; (3) it is difficult to represent the large complex multi-phase stratum, folds, faults and joints and the like; (4) the integrated installation of the internal material and the sensor of the model cannot be realized; (5) the flatness and smoothness of the surface of the model after forming cannot be guaranteed. SUMMARY

[0006] The present application is proposed in view of the above problems and needs, and a 3D printing device for a multi-phase geological model is provided. The technical purposes can be achieved and other technical effects can be brought about due to the following technical features.

[0007] An object of the present application is to provide a 3D printing device for a multi-phase geological model, which comprises:

[0008] The printing assembly comprises a frame, a printing nozzle and a moving mechanism, the frame defines a printing chamber, the moving mechanism is connected to the frame, and the printing nozzle is connected to the moving mechanism, wherein the moving mechanism is configured to drive the printing nozzle to simultaneously or individually perform a moving action along a horizontal direction, a transverse direction and a longitudinal direction of the frame; the horizontal direction, the transverse direction and the longitudinal direction are perpendicular to each other;

[0009] The bearing assembly comprises a pushing part arranged on one side of the frame and loaded with a plurality of surrounding plates, and the pushing part is configured to push the surrounding plates into the printing chamber to form a printing surrounding cavity for 3D printing;

[0010] The mechanical arm assembly comprises a mechanical arm body, a cutting part and a polishing part, the mechanical arm body is arranged on one side of the frame, and the cutting part and the polishing part are arranged at the tail end of the mechanical arm body and are configured to polish and cut the 3D model in the printing chamber by adjusting the posture.

[0011] In the technical scheme, the printing process of the 3D printing device is as follows: first, the surrounding plates are pushed into the printing chamber by the pushing part of the bearing assembly, then the printing nozzle simultaneously or individually performs a moving action along the horizontal direction, the transverse direction and the longitudinal direction of the frame in the printing surrounding cavity defined by the surrounding plates to perform 3D printing of the model, then the above two steps are repeatedly performed according to the required height of the 3D model until the printing of the 3D model is completed, and finally the 3D model is polished and cut by the mechanical arm assembly. The 3D printing device for a multiphase geological model provided by the application realizes the printing of a multiphase stratum, a fold, a fault and a joint, guarantees the similarity between the printed model and the actual geological condition, facilitates the monitoring of model internal pressure, displacement, temperature and other data through the reasonable installation of sensors in the model, ensures the flatness and smoothness of the model surface through the polishing device after the formation of the geological model, and realizes the uninterrupted printing of a large and complex multiphase geological model.

[0012] In addition, the 3D printing device for a multiphase geological model according to the application can also have the following technical features:

[0013] In one example of the application, the moving mechanism comprises a first rod body, a second rod body and a third rod body,

[0014] The first rod body is arranged along a horizontal direction of the frame, the printing nozzle is connected to the first rod body through a first moving part, the first moving part is configured to drive the printing nozzle to reciprocate along the horizontal direction, the second rod body is arranged along a transverse direction of the frame, the first rod body is connected to the second rod body, the first rod body and the second rod body are connected through a second moving part, the second moving part is configured to drive the first rod body to reciprocate along the transverse direction, and the third rod body is arranged along a longitudinal direction of the frame, the second rod body is connected to the third rod body through a third moving part, and the third moving part is configured to drive the second rod body to reciprocate along the longitudinal direction.

[0015] In an example of the present application, a rack is formed on each of the first rod body, the second rod body and the third rod body.

[0016] The first moving part, the second moving part and the third moving part each include:

[0017] A sliding block is movably connected to the first rod body, the second rod body or the third rod body, wherein a gear is pivotally connected to the sliding block, and the gear is engaged with the rack.

[0018] A driving motor is fixedly connected to the sliding block and connected to the gear, and is configured to drive the sliding block to move along the first rod body, the second rod body or the third rod body.

[0019] In an example of the present application, the pushing part includes:

[0020] A frame body is arranged on a side of the frame away from the mechanical arm assembly, and has an accommodating cavity inside, and the surrounding plates are stacked in the accommodating cavity.

[0021] A pushing mechanism is arranged at a lower end of the frame body and on a side of the frame body away from the frame, and is configured to drive the surrounding plate at the lowermost end in the accommodating cavity to move from the accommodating cavity to the printing chamber.

[0022] In an example of the present application,

[0023] A walking cavity penetrating through the frame body is arranged at the lower end of the frame body.

[0024] The pushing mechanism includes:

[0025] A pushing frame is fitted in the walking cavity.

[0026] A pushing rod connected with the pushing frame, configured to drive the pushing frame to switch between a first state of moving from outside of the accommodating cavity to inside of the accommodating cavity and a second state of moving from inside of the accommodating cavity to outside of the accommodating cavity.

[0027] In one example of the present application, the pushing rod comprises one of a hydraulic rod, a pneumatic cylinder and an electric pushing rod.

[0028] In one example of the present application, the bearing assembly further comprises:

[0029] A support part provided in the printing chamber, comprising a printing platform for supporting a 3D printing model, the support part being configured to adjust the height of the printing platform to be consistent with the height of the pushing part.

[0030] In one example of the present application, the support part further comprises:

[0031] A lifting mechanism provided at the lower end of the printing platform, configured to drive the printing platform to move in the height direction so that the height of the 3D printing model on the printing platform is consistent with the pushing part during printing.

[0032] In one example of the present application, the support part further comprises:

[0033] A vibration mechanism connected between the lifting mechanism and the printing platform, configured to drive the printing platform to vibrate synchronously.

[0034] Another object of the present application is to provide a printing method of the 3D printing device for multi-phase geological model as described above, comprising the following steps:

[0035] S10: pushing the surrounding plate into the printing chamber by the pushing part of the bearing assembly;

[0036] S20: performing the moving action of the printing head along the horizontal direction, the transverse direction and the longitudinal direction of the frame simultaneously or individually in the printing cavity defined by the surrounding plate to perform the 3D printing of the model;

[0037] S30: repeating S10 and S20 according to the required height of the 3D model until the printing of the 3D model is completed;

[0038] S40: polishing and cutting the 3D model by adjusting the posture of the mechanical arm assembly.

[0039] The most preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings, so that the features and advantages of the present application can be easily understood. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments of the present application will be briefly introduced below. Among them, the drawings are only used to show some embodiments of the present application, and the present application is not limited to the drawings.

[0041] Figure 1 A structural schematic diagram of a 3D printing device for a multi-phase geological model according to an embodiment of the present application;

[0042] Figure 2 A structural schematic diagram of a pushing part according to an embodiment of the present application;

[0043] Figure 3 A partial structural schematic diagram of a frame according to an embodiment of the present application;

[0044] Figure 4 A structural schematic diagram of a supporting part according to an embodiment of the present application;

[0045] Figure 5 A structural schematic diagram of a vibration mechanism according to an embodiment of the present application;

[0046] Figure 6 A structural schematic diagram of a mechanical arm assembly according to an embodiment of the present application;

[0047] Figure 7 A connection structural diagram of a mechanical finger according to an embodiment of the present application;

[0048] Figure 8 A structural schematic diagram of a first moving part according to an embodiment of the present application;

[0049] Figure 9 A structural schematic diagram of a second moving part according to an embodiment of the present application;

[0050] Figure 10 A structural schematic diagram of a third moving part according to an embodiment of the present application.

[0051] List of reference signs:

[0052] A printing device 100;

[0053] A printing assembly 10;

[0054] A frame 11;

[0055] A printing chamber 111;

[0056] A printing nozzle 12;

[0057] A moving mechanism 13;

[0058] A first rod body 131;

[0059] A second rod body 132;

[0060] Third rod body 133;

[0061] First moving part 134;

[0062] Second moving part 135;

[0063] Third moving part 136;

[0064] Rack 13A;

[0065] Slider 13B;

[0066] Gear 13B1;

[0067] Drive motor 13C;

[0068] Bearing assembly 20;

[0069] Pushing part 21;

[0070] Frame body 211;

[0071] Accommodating cavity 2111;

[0072] Walking cavity 2112;

[0073] Pushing mechanism 212;

[0074] Pushing frame 2121;

[0075] Pushing rod 2122;

[0076] Surrounding plate 213;

[0077] Support part 22;

[0078] Printing platform 221;

[0079] Lifting mechanism 222;

[0080] X-shaped linkage assembly 2221;

[0081] Second telescopic driving piece 2222;

[0082] Hinged rod 2223;

[0083] Vibration mechanism 223;

[0084] Elastic member 224;

[0085] Mechanical arm assembly 30;

[0086] Mechanical arm body 31;

[0087] Support table 311;

[0088] Large arm 312;

[0089] Small arm 313;

[0090] mechanical finger 32;

[0091] cutting portion 33;

[0092] filling nozzle 34;

[0093] mechanical linkage 35;

[0094] horizontal direction X;

[0095] lateral direction Y;

[0096] longitudinal direction Z. DETAILED DESCRIPTION

[0097] In order to make the purpose, technical solutions and advantages of the technical solutions of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the specific embodiments of the present application. The same reference signs in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0098] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms "first", "second", and similar terms used in the description and the claims of the present application do not necessarily mean any order, number, or importance, but are only used to distinguish different components. Similarly, the terms "one" or "a" or similar terms do not necessarily mean a quantity limitation. The terms "including" or "containing" or similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connected" or "connected" or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like only represent relative positional relationships, which may

[0099] According to the first aspect of the present application, a 3D printing device 100 for a multi-phase geological model comprises: Figure 1 as shown, comprising:

[0100] The printing assembly 10 comprises a frame 11, a printing nozzle 12 and a moving mechanism 13, the frame 11 defines a printing chamber 111, the moving mechanism 13 is connected to the frame 11, and the printing nozzle 12 is connected to the moving mechanism 13, wherein the moving mechanism 13 is configured to drive the printing nozzle 12 to simultaneously or individually perform a moving action along a horizontal direction X, a transverse direction Y and a longitudinal direction Z of the frame 11, and the horizontal direction X, the transverse direction Y and the longitudinal direction Z are perpendicular to each other.

[0101] The bearing assembly 20 comprises a pushing part 21 arranged on one side of the frame 11, and a plurality of surrounding plates 213 are loaded in the pushing part 21, and the pushing part 21 is configured to push the surrounding plates 213 into the printing chamber 111 to form a printing surrounding cavity for 3D printing.

[0102] The mechanical arm assembly 30 comprises a mechanical arm body 31, a cutting part 33 and a polishing part, the mechanical arm body 31 is arranged on one side of the frame 11, and the cutting part 33 and the polishing part are arranged at the tail end of the mechanical arm body 31, and are configured to polish and cut the 3D model in the printing chamber 111 by adjusting the posture.

[0103] The printing process of the 3D printing device 100 is as follows: first, the pushing part 21 of the bearing assembly 20 pushes the surrounding plates 213 into the printing chamber 111, and then the printing nozzle 12 performs a moving action along the horizontal direction X, the transverse direction Y and the longitudinal direction Z of the frame 11 simultaneously or individually in the printing surrounding cavity defined by the surrounding plates 213 to perform 3D printing of the model; then, the above two steps are repeatedly performed according to the required height of the 3D model until the printing of the 3D model is completed; finally, the mechanical arm assembly 30 polishes and cuts the 3D model; it should be noted that in order to facilitate subsequent laboratory test monitoring of model internal pressure, displacement, temperature and other data, corresponding sensors are arranged in the model during printing.

[0104] The 3D printing device 100 for a multiphase geological model provided by the application realizes the printing of multiphase strata, folds, faults and joints, and guarantees the similarity of the printed model to the actual geological conditions; by reasonably installing sensors in the model, laboratory test monitoring of model internal pressure, displacement, temperature and other data is facilitated; after the geological model is formed, the polishing device can ensure the flatness and smoothness of the model surface; and uninterrupted printing of large and complex multiphase geological models is realized.

[0105] In one example of the application, as shown in Figure 1 The moving mechanism 13 comprises a first rod body 131, a second rod body 132 and a third rod body 133,

[0106] The first rod body 131 is arranged along the horizontal direction X of the frame 11, the printing head 12 is connected to the first rod body 131 through a first moving part 134, the first moving part 134 is configured to drive the printing head 12 to reciprocate along the horizontal direction X, the second rod body 132 is arranged along the transverse direction Y of the frame 11, and the first rod body 131 is connected to the second rod body 132, the first rod body 131 and the second rod body 132 are connected through a second moving part 135, the second moving part 135 is configured to drive the first rod body 131 to reciprocate along the transverse direction Y, the third rod body 133 is arranged along the longitudinal direction Z of the frame 11, the second rod body 132 is connected to the third rod body 133 through a third moving part 136, and the third moving part 136 is configured to drive the second rod body 132 to reciprocate along the longitudinal direction Z;

[0107] That is, the printing head 12 is connected to the first rod body 131 through the first moving part 134, the first rod body 131 is connected to the second rod body 132 through the second moving part 135, and the second rod body 132 is connected to the third rod body 133 through the third moving part 136; the first moving part 134 drives the printing head 12 to reciprocate along the horizontal direction X of the first rod body 131, the second moving part 135 drives the first rod body 131 to reciprocate along the transverse direction Y of the second rod body 132, and the third moving part 136 drives the second rod body 132 to reciprocate along the longitudinal direction Z of the third rod body 133;

[0108] When the printing head 12 needs to be moved, the first moving part 134, the second moving part 135 and the third moving part 136 respectively drive the printing head 12, the first rod body 131 and the second rod body 132 to move along the horizontal direction X, the transverse direction Y and the longitudinal direction Z, thereby realizing flexible movement of the printing head 12 along the horizontal direction X, the transverse direction Y and the longitudinal direction Z;

[0109] As a preferred, third rod body groups extending along the longitudinal direction Z and arranged on both sides of the horizontal direction X of the frame 11 are provided, each third rod body group includes a plurality of third rod bodies 133, and the plurality of third rod bodies 133 are arranged at intervals along the transverse direction Y, for example, as shown in Figure 1As shown, each of the third rod body groups comprises four third rod bodies 133, two of which are arranged on two sides of the frame 11 in the horizontal direction X respectively; the second rod body 132 comprises two, each of which is movably connected to a third rod body group, so that the second rod body 132 can move along the arrangement direction (longitudinal direction Z) of the third rod body 133, the first rod body 131 is connected between the two second rod bodies 132, and at least one printing nozzle 12 is connected to the first rod body 131; in short, at least one printing nozzle 12 can move along the horizontal direction X of the first rod body 131, and the two second rod bodies 132 supporting the first rod body 131 can move along the transverse direction Y through the second moving part 135, and the second rod body 132 can move along the longitudinal direction Z of the third rod body 133 through the third moving part 136, so as to realize flexible movement of the printing nozzle 12 in the horizontal direction X, the transverse direction Y and the longitudinal direction Z.

[0110] In one example of the present application, as shown in Figure 8 、 Figure 9 and Figure 10 The first rod body 131, the second rod body 132 and the third rod body 133 are all formed with a rack 13A;

[0111] The first moving part 134, the second moving part 135 and the third moving part 136 all comprise:

[0112] A sliding block 13B movably connected to the first rod body 131 or the second rod body 132 or the third rod body 133, wherein the sliding block 13B is pivotally connected with a gear 13B1, and the gear 13B1 is engaged with the rack 13A;

[0113] A driving motor 13C fixedly connected to the sliding block 13B and connected with the gear 13B1, configured to drive the sliding block 13B to move along the first rod body 131 or the second rod body 132 or the third rod body 133;

[0114] For example, the first moving part 134 on the first rod body 131, the printing nozzle 12 is fixedly connected to the sliding block 13B, the sliding block 13B is sleeved on the first rod body 131, the gear 13B1 is driven to rotate by the driving motor 13C, the gear 13B1 and the rack 13A on the first rod body 131 are engaged with each other, so as to drive the sliding block 13B to move along the horizontal direction X of the first rod body 131;

[0115] For example, the second moving part 135 on the second rod body 132, the first rod body 131 is fixedly connected to the sliding block 13B of the second moving part 135 (the second rod body 132 includes two and is symmetrically arranged in the horizontal direction X of the frame 11), the sliding block 13B is sleeved on the second rod body 132, the gear 13B1 is driven to rotate by the driving motor 13C, and the gear 13B1 and the rack 13A on the second rod body 132 are meshed with each other, so as to drive the sliding block 13B to move linearly along the transverse direction Y of the second rod body 132.

[0116] For another example, the third moving part 136 on the third rod body 133, the second rod body 132 is fixedly connected to the sliding block 13B of the third moving part 136 (the third rod body group extends in the longitudinal direction Z and is arranged on both sides of the horizontal direction X of the frame 11, each third rod body group includes a plurality of third rod bodies 133, and the plurality of third rod bodies 133 are arranged at intervals along the transverse direction Y), the sliding block 13B is sleeved on one of the third rod bodies 133, the gear 13B1 is driven to rotate by the driving motor 13C, and the gear 13B1 and the rack 13A on the third rod body 133 are meshed with each other, so as to drive the sliding block 13B to move linearly along the longitudinal direction Z of the third rod body 133.

[0117] In another example of the present application, the first rod body 131, the second rod body 132 and the third rod body 133 are all formed with external threads, and the first rod body 131, the second rod body 132 and the third rod body 133 are all pivotally connected;

[0118] The first moving part 134, the second moving part 135 and the third moving part 136 all include:

[0119] The sliding block 13B is formed with an internal thread matched with the external thread, and is sleeved on the first rod body 131 or the second rod body 132 or the third rod body 133;

[0120] The driving motor 13C is fixedly connected to the frame 11 and connected to the first rod body 131 or the second rod body 132 or the third rod body 133, and is configured to drive the first rod body 131 or the second rod body 132 or the third rod body 133 to rotate, thereby driving the sliding block 13B to move linearly along the first rod body 131 or the second rod body 132 or the third rod body 133;

[0121] In short, the first moving part 134, the second moving part 135 and the third moving part 136 are screw nut structures, and flexible movement of the printing head 12 in the horizontal direction X, the transverse direction Y and the longitudinal direction Z can be realized through the structure.

[0122] It should be noted that, in order to prevent the slider 13B from rotating around the first rod body 131 or the second rod body 132 or the third rod body 133 during linear movement, the solution is (taking the first rod body 131 as an example) to set a guide rod parallel to the first rod body 131, and the slider 13B is slidably sleeved on the guide rod, so that when the slider 13B rotates around the first rod body 131 under the driving of the driving motor 13C, the guide rod limits the slider 13B.

[0123] Of course, the present application is not limited thereto, and the first moving part 134, the second moving part 135 and the third moving part 136 each include:

[0124] a slider 13B sleeved on the first rod body 131 or the second rod body 132 or the third rod body 133;

[0125] a first telescopic driving member fixedly connected to the frame 11 and connected to the slider 13B, configured to drive the slider 13B to reciprocatingly move linearly along the first rod body 131 or the second rod body 132 or the third rod body 133.

[0126] In one example of the present application, as shown in Figure 2 and Figure 3 the pusher 21 includes:

[0127] a frame body 211 provided on a side of the frame 11 away from the mechanical arm assembly 30, the inside of the frame body 211 having a receiving cavity 2111, and a surrounding plate 213 stacked in the receiving cavity 2111;

[0128] a pushing mechanism 212 provided at a lower end of the frame body 211 and on a side of the frame body 211 away from the frame 11, configured to drive the surrounding plate 213 at the lowermost end in the receiving cavity 2111 to move from the receiving cavity 2111 to the printing chamber 111;

[0129] That is, the surrounding plates 213 are stacked in the receiving cavity 2111 from bottom to top, and the surrounding plates 213 stacked in the receiving cavity 2111 are pushed out of the receiving cavity 2111 to the printing chamber 111 by the pushing mechanism 212 from bottom to top, and after the pushing mechanism 212 pushes the surrounding plate 213 at the lowermost end out of the receiving cavity 2111 to the printing chamber 111, it returns to the initial position, at this time the surrounding plate 213 sinks downward by a height of one thickness of the surrounding plate 213, and the above steps are repeated to sequentially send the surrounding plates 213 to the printing chamber 111.

[0130] In one example of the present application, as shown in Figure 2 and Figure 3 ,

[0131] A walking cavity 2112 is formed through the frame 211 at the lower end of the frame 211;

[0132] The pushing mechanism 212 comprises:

[0133] A pushing frame 2121 is adapted in the walking cavity 2112;

[0134] A pushing rod 2122 is connected with the pushing frame 2121 and is configured to drive the pushing frame 2121 to switch between a first state of moving from outside the accommodating cavity 2111 to inside the accommodating cavity 2111 and a second state of moving from inside the accommodating cavity 2111 to outside the accommodating cavity 2111;

[0135] Specifically, when the pushing rod 2122 needs to push the surrounding plate 213 from the accommodating cavity 2111 to the printing chamber 111, the pushing rod 2122 drives the pushing frame 2121 to perform the first state action of moving from outside the accommodating cavity 2111 to inside the accommodating cavity 2111 to complete the pushing of one surrounding plate 213; when the pushing of the next surrounding plate 213 is needed, the pushing rod 2122 drives the pushing frame 2121 to first perform the second state action of moving from inside the accommodating cavity 2111 to outside the accommodating cavity 2111, at this time the next surrounding plate 213 to be pushed falls to the lower end of the accommodating cavity 2111 under the action of gravity, and then performs the first state action of moving from outside the accommodating cavity 2111 to inside the accommodating cavity 2111 to complete the pushing of another surrounding plate 213, and the same is repeated until the pushing of all surrounding plates 213 is completed. The pushing mechanism 212 can complete the pushing of the surrounding frame, and the pushing is convenient.

[0136] In one example of the present application, the pushing rod 2122 comprises one of a hydraulic rod, a pneumatic cylinder and an electric push rod.

[0137] In one example of the present application, as shown in Figure 4 The bearing assembly 20 further comprises:

[0138] A support part 22 is provided in the printing chamber 111 and comprises a printing platform 221 for supporting a 3D printing model, and the support part 22 is configured to adjust the height of the printing platform 221 to be consistent with the height of the pushing part 21;

[0139] Since the height of the 3D printing model gradually increases after the printing head 12 prints in the surrounding plate 213, in order to facilitate the pushing of the pushing part 21, the height of the printing platform 221 needs to be adjusted (for example, the height of the support part 22 is gradually lowered) to be consistent with the height of the pushing part 21 at all times, which is beneficial to the pushing action of the pushing part 21.

[0140] In one example of the present application, as shown in Figure 4 The support part 22 further comprises:

[0141] A lifting mechanism 222 is arranged at the lower end of the printing platform 221 and is configured to drive the printing platform 221 to move in the height direction so that the height of the 3D printing model on the printing platform 221 is consistent with the pushing part 21 during the printing process.

[0142] That is, during the printing process of the printing head 12, as the height of the 3D printing model gradually increases, the height of the printing platform 221 needs to be adjusted by the lifting mechanism 222 (for example, the lifting mechanism 222 gradually lowers the height) to facilitate the pushing of the pushing part 21, so that the height of the pushing part 21 is always consistent, which is conducive to the pushing action of the pushing part 21.

[0143] For example, the lifting mechanism 222 comprises a plurality of X-shaped linkage assemblies 2221, a second telescopic driving member 2222, and a hinged rod 2223, wherein the X-shaped linkage assembly 2221 comprises two X-shaped hinged rods, the plurality of X-shaped linkage assemblies 2221 can be symmetrically arranged on both sides of the horizontal direction X of the printing platform 221, a plurality of X-shaped linkage assemblies 2221 can be arranged on each side along the longitudinal direction Z, adjacent two X-shaped linkage assemblies 2221 are hinged to each other, and the X-shaped linkage assemblies 2221 on both sides of the horizontal direction X are connected by the hinged rod 2223, each hinged rod 2223 is hinged to the corresponding side X-shaped linkage assembly 2221; the hinged rod 2223 comprises at least two and is arranged on both sides of the X-shaped linkage assembly 2221 in the transverse direction Y, one end of the second telescopic driving member 2222 is hinged to one side of the hinged rod 2223, and the other end of the second telescopic driving member 2222 is hinged to the other side of the hinged rod 2223, the up-down movement of the X-shaped linkage assembly in the longitudinal direction Z is adjusted by the telescopic movement of the second telescopic driving member 2222, so as to drive the height adjustment of the printing platform 221.

[0144] In one example of the present application, as shown in Figure 5 The support part 22 further comprises:

[0145] A vibration mechanism 223 is connected between the lifting mechanism 222 and the printing platform 221 and is configured to drive the printing platform 221 to vibrate synchronously; for example, the vibration mechanism 223 is a vibration motor.

[0146] If the concrete is not mixed uniformly, small voids will be generated, and during the 3D printing process, voids will appear in the concrete. The vibration mechanism 223 can make the 3D printing model denser and the printing model effect better.

[0147] As a further preferred, the support part 22 further comprises a spring 224, which is arranged between the damping mechanism and the printing platform 221, and is configured to buffer the vibration impact force of the printing platform 221.

[0148] In one example of the present application, as shown in Figure 6 、 Figure 7 The mechanical arm assembly 30 comprises a mechanical arm support table 311, a large arm 312, a small arm 313, a large arm motor, a small arm motor, a mechanical finger 32, a hand grabbing motor, a cutting part 33, and a filling nozzle 34. The large arm 312 is installed above the mechanical arm support table 311, and the support table 311 is provided with a horizontal rotating bearing below, so that the mechanical arm has a horizontal rotating function. The proximal end of the small arm 313 is connected to the distal end of the large arm 312 by a motor gear 13B1, and the large arm 312 motor drives the rotation of the large arm 312, thereby driving the rotation of the small arm 313. The large arm motor is connected inside the large arm 312, and the small arm motor is connected inside the small arm 313. The bottom end of the mechanical finger 32 is provided with a telescopic rod, the hand grabbing motor is connected to the telescopic rod, and the hand grabbing motor drives the telescopic rod to perform telescopic movement, and the mechanical finger 32 telescopes under the action of the telescopic rod. The inner joint and the outer joint of the mechanical finger 32 are connected by a mechanical linkage mechanism 35, and the inner joint drives the outer joint to move under the action of the mechanical linkage mechanism 35, so that the mechanical finger 32 has a bending function. The tip of the mechanical finger 32 is provided with a small suction cup, which plays a role in adsorption under the action of the grabbing sensor. The cutting part 33 is installed on the right side of the small arm 313, and the connecting part between the cutting part 33 and the small arm 313 rotates by meshing with the rotating gear 13B1. The cutting part 33 has an embedded slicing structure. During the model printing process, the crack cutting blade is manually replaced to cut the geological model. After the model is formed, the polishing device is replaced to polish the edges of the geological model. The filling nozzle 34 is installed at the center position of the mechanical finger 32. The pushing rod 2122 inside the mechanical finger 32 operates to make the mechanical finger 32 retract into the small arm 313. The filling nozzle 34 sprays the required filling material under the action of the small power pump.

[0149] It can be understood that the mechanical arm assembly 30 further comprises a controller, which is coupled with the large arm motor, the small arm motor, the hand grabbing motor, the cutting part, and the power pump. The controller controls the start and stop of the large arm motor, the small arm motor, the hand grabbing motor, the cutting pump, and the power pump, thereby controlling the large arm 312, the small arm 313, the mechanical finger 32, the cutting part 33, and the filling nozzle 34 to perform corresponding actions, and finally realizing the adjustment of the posture of the mechanical arm assembly 30 itself and the grabbing, cutting, polishing, and material spraying.

[0150] According to the second aspect of the present application, a printing method of the 3D printing device 100 of the multiphase geological model as described above comprises the following steps:

[0151] S10: pushing the surrounding plate 213 into the printing chamber 111 by the pushing part 21 of the bearing assembly 20;

[0152] S20: performing the moving action along the horizontal direction X, the lateral direction Y and the longitudinal direction Z of the frame 11 simultaneously or individually by the printing nozzle 12 to perform the 3D printing of the model in the printing surrounding cavity defined by the surrounding plate 213;

[0153] S30: repeatedly performing S10 and S20 according to the required height of the 3D model until the printing of the 3D model is completed;

[0154] S40: polishing and cutting the 3D model by adjusting the posture by the mechanical arm assembly 30.

[0155] The 3D printing method of the multiphase geological model provided by the present application realizes the printing of the multiphase stratum, fold, fault and joint, guarantees the similarity between the printed model and the actual geological condition, installs the sensor in the model reasonably, is convenient for the laboratory test to monitor the data such as the internal pressure, displacement and temperature of the model, and after the geological model is formed, the polishing device can ensure the flatness and smoothness of the surface of the model, realizes the uninterrupted printing of the large and complex multiphase geological model.

[0156] The exemplary embodiment of the 3D printing device 100 of the multiphase geological model provided by the present application is described in detail above with reference to the preferred embodiment, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiment without departing from the concept of the present application, various technical features and structures provided by the present application can be combined, and the protection scope of the present application is determined by the appended claims.

Claims

1. A 3D printing device for a multiphase geological model, characterized in that, include: A printing assembly (10) includes a frame (11), a print head (12), and a moving mechanism (13). The frame (11) defines a printing chamber (111). The moving mechanism (13) is connected to the frame (11), and the print head (12) is connected to the moving mechanism (13). The moving mechanism (13) is configured to drive the print head (12) to perform simultaneous or individual movement along the horizontal (X), lateral (Y), and longitudinal (Z) directions of the frame (11). The horizontal (X), lateral (Y), and longitudinal (Z) directions are perpendicular to each other. The supporting component (20) includes a pushing part (21) located on one side of the frame (11) and containing multiple partitions (213). The pushing part (21) is configured to push the partitions (213) into the printing chamber (111) to form a printing cavity for 3D printing. The supporting part (22) is located in the printing chamber (111) and includes a printing platform (221) for supporting the 3D printing model. The supporting part (22) is configured to adjust the height of the printing platform (221) to match the height of the pushing part (21). The supporting part (22) further includes a lifting mechanism (222) located at the lower end of the printing platform (221) and configured to drive the printing platform (221) to move in the height direction so that the height of the 3D printing model on the printing platform (221) matches that of the pushing part (21) during the printing process. The robotic arm assembly (30) includes a robotic arm body (31), a cutting section (33), and a grinding section. The robotic arm body (31) is located on one side of the frame (11), and the cutting section (33) and the grinding section are both located at the end of the robotic arm body (31). The assembly is configured to grind and cut the 3D model in the printing chamber (111) by adjusting the posture.

2. The 3D printing apparatus for multiphase geological models according to claim 1, characterized in that, The moving mechanism (13) includes: a first rod (131), a second rod (132) and a third rod (133). The first rod (131) is arranged along the horizontal direction (X) of the frame (11). The print head (12) is connected to the first rod (131) via a first moving part (134), which is configured to drive the print head (12) to reciprocate along the horizontal direction (X). The second rod (132) is arranged along the transverse direction (Y) of the frame (11), and the first rod (131) is connected to the second rod (132). The second rods (132) are connected to each other by a second moving part (135), which is configured to drive the first rod (131) to reciprocate along the lateral direction (Y). The third rod (133) is arranged along the longitudinal direction (Z) of the frame (11). The second rod (132) is connected to the third rod (133) by a third moving part (136), which is configured to drive the second rod (132) to reciprocate along the longitudinal direction (Z).

3. The 3D printing apparatus for multiphase geological models according to claim 2, characterized in that, A rack (13A) is formed on the first rod (131), the second rod (132) and the third rod (133); The first moving part (134), the second moving part (135), and the third moving part (136) each include: A slider (13B) is movably connected to the first rod (131), the second rod (132), or the third rod (133), wherein a gear (13B1) is pivotally connected to the slider (13B), and the gear (13B1) meshes with the rack (13A); A drive motor (13C) is fixedly connected to the slider (13B) and connected to the gear (13B1), configured to drive the slider (13B) to move along the first rod (131), the second rod (132), or the third rod (133).

4. The 3D printing apparatus for multiphase geological models according to claim 1, characterized in that, The push unit (21) includes: A frame (211) is disposed on the side of the frame (11) away from the robotic arm assembly (30), the interior of which has a receiving cavity (2111) and a surrounding panel (213) is stacked inside the receiving cavity (2111); The push mechanism (212) is located at the lower end of the frame (211) and on the side of the frame (211) away from the frame (11), and is configured to drive the enclosure (213) located at the lowermost end of the accommodating cavity (2111) to move from the accommodating cavity (2111) to the printing chamber (111).

5. The 3D printing apparatus for multiphase geological models according to claim 4, characterized in that, A walking cavity (2112) is provided at the lower end of the frame (211) and passes through the frame (211). The push mechanism (212) includes: The push frame (2121) is adapted to the walking cavity (2112); A push rod (2122), which is connected to the push frame (2121), is configured to drive the push frame (2121) to switch between a first state in which it moves from the outside of the receiving cavity (2111) to the inside of the receiving cavity (2111) and a second state in which it moves from the inside of the receiving cavity (2111) to the outside of the receiving cavity (2111).

6. The 3D printing apparatus for multiphase geological models according to claim 5, characterized in that, The push rod (2122) includes one of a hydraulic rod, a cylinder, and an electric push rod.

7. The 3D printing apparatus for multiphase geological models according to claim 1, characterized in that, The support portion (22) further includes: A vibration mechanism (223) is connected between the lifting mechanism (222) and the printing platform (221) and is configured to drive the printing platform (221) to vibrate synchronously with it.

8. A printing method for a 3D printing apparatus for a multiphase geological model as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S10: The pusher (21) of the support component (20) pushes the enclosure (213) into the printing chamber (111); S20: The printing nozzle (12) performs 3D printing of the model within the printing cavity defined by the partition plate (213) by simultaneously or individually moving along the horizontal direction (X), the transverse direction (Y) and the longitudinal direction (Z) of the frame (11); S30: Repeat steps S10 and S20 as needed for the 3D model until the 3D model is printed. S40: The 3D model is polished and cut by the robotic arm assembly (30) by adjusting its posture.

Images