3D-printed multi-layer structure and its cutting teaching model

Abstract

This invention discloses a 3D printed multi-layer structure and its cutting teaching model. The design of the core plate and outer plate achieves the lightweight and high-strength connection required for the multi-layer structure. The honeycomb core plate significantly accelerates printing speed and reduces printing losses, facilitating self-printing and installation for students. The interlocking structure ensures a high-strength connection between the functional layers and the outer plate, guaranteeing the strength required for the functional layers. The control module enables the movement and locking of the three-dimensional moving device, facilitating manual three-dimensional movement of the mounting head. This results in a simple and reliable overall structure, facilitating the demonstration of cutting postures and the principles of multi-axis milling, thus improving teaching effectiveness.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of 3D printing, and more particularly to a 3D printing multi-layer structure and a cutting teaching model thereof. BACKGROUND

[0002] As a rapid prototyping process equipment, 3D printing can generate three-dimensional data according to the needs of the user, and realize the processing of solid parts through layer-by-layer material accumulation and solidification according to the three-dimensional data.

[0003] In the field of cutting machine manufacturing and teaching, multi-axis milling processing technology has certain difficulty for students to understand and master due to its complexity and high precision requirements. In the traditional teaching method, the relevant knowledge is usually imparted by combining theoretical explanation with limited practical operation. However, the actual multi-axis machine tool is large in size, complex in structure, and in a fully closed state during processing, so it is difficult for students to directly observe the structure and cutting process inside the machine tool. This leads to the fact that students' understanding of five-axis milling processing often stays at the theoretical level, and it is difficult to form an intuitive and deep understanding.

[0004] In view of this, the current multi-axis machining tool teaching model is still formed by metal processing, which mainly realizes the needs of miniaturization and teaching by directly reducing the overall structure size. However, such a model has a large cost and is difficult to be used independently in teaching. Directly using 3D printing, on the one hand, the overall volume of the teaching model is large, which will cause a sharp rise in printing cost and time, and it is difficult for students to print and use independently. Therefore, generally, the printing density is greatly reduced to improve the printing speed, but this will directly cause the strength of the model to decrease greatly, so that the model is prone to breakage and delamination during subsequent installation and use. Therefore, it needs to be improved. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a 3D printing multi-layer structure and a cutting teaching model using the structure.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A 3D printing multi-layer structure, comprising:

[0008] A honeycomb-shaped core plate and an outer plate arranged around the core plate, the outer plate forms a connecting layer in the direction of the core plate, and part of the connecting layer is solidified in the same plane as the core plate;

[0009] The outer plate comprises a support layer and a reinforcing layer solidified in turn from inside to outside, the reinforcing layer forms an interlocking structure on both sides, the interlocking structure is a reinforcing rib solidified integrally with the reinforcing layer, and the reinforcing rib is arranged in a grid shape;

[0010] a functional layer, which is cured on one side of the reinforcing layer, and part of the functional layer is embedded in the gap between the reinforcing ribs and cured with the reinforcing ribs.

[0011] As a further improvement of the present application, a simulation layer is further included, which is cured on the side of the functional layer away from the reinforcing layer, and the simulation layer is used to form a metal appearance.

[0012] A cutting teaching model is made of the above-mentioned 3D printing multi-layer structure, comprising:

[0013] A machine tool model, which is respectively provided with a clamp unit and a cutting unit;

[0014] The regulating module comprises a base block and a matching section, the base block is provided with at least one fixing head, the fixing head is connected with the base block through an elastic member, the matching section is provided with a clamping groove for matching and clamping with the fixing head along the length direction, the matching section is arranged in a ring shape or a straight line shape, and the fixing head is clamped with the clamping groove to limit the movement of the fixing head relative to the matching section.

[0015] The cutting unit comprises a mounting head and a three-dimensional moving device, the three-dimensional moving device is connected with the mounting head and used to drive the three-dimensional movement of the mounting head, and the three-dimensional moving device comprises an X-axis moving seat, a Y-axis moving seat and a Z-axis moving seat.

[0016] The X-axis moving seat is slidingly connected with the machine tool model and provided with a regulating module at the connection position.

[0017] The Y-axis moving seat is slidingly connected with the X-axis moving seat and provided with a regulating module at the connection position.

[0018] The Z-axis moving seat is slidingly connected with the Y-axis moving seat and provided with a regulating module at the connection position, and the mounting head is arranged at the lower end of the Z-axis moving seat and corresponds to the clamp unit.

[0019] As a further improvement of the present application, the clamp unit comprises a workbench, an adjusting seat and a connecting seat.

[0020] The connecting seat is rotationally connected with the machine tool model and provided with a regulating module at the connection position.

[0021] The adjusting seat is arranged horizontally and fixed with the connecting seat.

[0022] The workbench is arranged above the adjusting seat in correspondence, and the workbench is rotationally connected with the adjusting seat through the regulating module.

[0023] As a further improvement of the present application, the workbench and the fixing head are both provided with a magnetic member.

[0024] As a further improvement of the present application, the magnetic part is annular and arranged at the bottom of the mounting head, the bottom of the mounting head is provided with an indicator light for the axis of the magnetic part, and the tool head model is provided with a suction member magnetically connected to the magnetic part at one end, and the tool head model is provided with an indicating hole for the indicator light to pass through along the length direction.

[0025] As a further improvement of the present application, when the fitting section is annular, the number of the fixing heads is 2 and arranged symmetrically along the base block.

[0026] As a further improvement of the present application, when the fitting section is linear, the base block is extended outward at one end to form a limiting end, the fitting section is provided with a sliding groove along the length direction for limiting the sliding of the limiting end, and the fixing head is clamped with the clamping groove when the limiting end is in contact with the sliding groove.

[0027] As a further improvement of the present application, the workpiece model is further included, the workpiece model includes a base and a plurality of cutting blocks, the base and the cutting blocks are both provided with magnets and are fixed by magnetic attraction, the bottom of the base is provided with a clamping block, the workbench is provided with a through mounting slot corresponding to the clamping block, and the mounting slot is limited to slide with the clamping block.

[0028] The present application has the following advantages:

[0029] 1. The lightweight and high-strength connection of the multi-layer structure is realized by the setting of the core plate and the outer plate, the honeycomb-shaped core plate can greatly speed up the printing speed and reduce the printing loss, so as to facilitate students to self-help print and install learning, and the high-strength connection of the functional layer and the outer plate is realized by the setting of the interlocking structure, so as to ensure the strength use requirement of the functional layer.

[0030] 2. The setting of the simulation layer can improve the model authenticity and improve the teaching effect.

[0031] 3. The movement and locking of the three-dimensional moving device are realized by the setting of the control module, so as to facilitate the manual three-dimensional movement of the mounting head, and the whole structure is simple and reliable, so as to facilitate the display of the cutting posture and improve the teaching effect.

[0032] 4. The mechanical movement and locking mode can avoid errors caused by students' unfamiliarity in actual operation, and reduce the safety risk. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The flowchart of the multi-layer structure of the present application;

[0034] Figure 2 The reinforcing rib diagram of the present application;

[0035] Figure 3The whole installation schematic diagram of the cutting teaching model of the present application;

[0036] Figure 4 The installation schematic diagram of the X-axis moving seat of the present application;

[0037] Figure 5 The installation schematic diagram of the corresponding matching section of the X-axis moving seat of the present application;

[0038] Figure 6 The installation schematic diagram of the Y-axis moving seat of the present application;

[0039] Figure 7 The installation schematic diagram of the Z-axis moving seat of the present application;

[0040] Figure 8 The installation schematic diagram of the connecting seat of the present application;

[0041] Figure 9 The installation schematic diagram of the workbench of the present application;

[0042] Figure 10 The profile schematic diagram of the indicating hole of the present application;

[0043] Figure 11 The workpiece model schematic diagram of the present application.

[0044] The reference signs: 1, core plate; 2, outer plate; 3, connecting layer; 4, supporting layer; 5, reinforcing layer; 6, reinforcing rib; 7, functional layer; 8, simulation layer; 9, machine tool model; 10, clamp unit; 11, cutting unit; 12, regulation and control module; 13, base block; 14, matching section; 15, fixed head; 16, clamping groove; 17, installation head; 18, X-axis moving seat; 19, Y-axis moving seat; 20, Z-axis moving seat; 21, limiting end; 22, sliding groove; 23, workbench; 24, adjusting seat; 25, connecting seat; 26, first limiting rod; 27, first limiting ring; 28, second limiting rod; 29, second limiting ring; 30, magnetic piece; 31, indicating lamp; 32, tool bit model; 33, suction accessory; 34, indicating hole; 35, base; 36, cutting block; 37, clamping block; 38, installation groove. DETAILED DESCRIPTION

[0045] The present application will be further described in detail below in combination with the drawings and embodiments. The same parts are denoted by the same reference signs.

[0046] REFERENCE Figures 1-2The utility model relates to a kind of 3D printing multilayer structure, including: honeycomb core board 1 and the outer plate 2 being arranged around core board 1, using honeycomb core board 1 can substantially reduce printing loss and printing time, to facilitate student self-directed printing learning use, while honeycomb core board 1 can provide greater strength in single direction, to guarantee the strength between multiple model connections, outer plate 2 forms connecting layer 3 to core board 1 direction, since the outer side of honeycomb core board 1 will form groove structure, part of connecting layer 3 is solidified with core board 1 plane, i.e. part of connecting layer 3 is embedded in the groove structure, to achieve the fastening connection with core board 1, to avoid the existence of cavity between the two and lead to connection instability.

[0047] Further, outer plate 2 includes support layer 4 and reinforcing layer 5 solidified from inside to outside in sequence, connecting layer 3 is located on the side of support layer 4 away from reinforcing layer 5, interlocking structure is formed on both sides of reinforcing layer 5, and interlocking structure is reinforcing rib 6 solidified in an integral manner with reinforcing layer 5, reinforcing rib 6 is arranged in a grid shape.

[0048] Through the arrangement of interlocking structure, the connecting strength of both sides of reinforcing layer 5 can be greatly improved, so as to ensure the connecting strength between outer plate 2 and functional layer 7.

[0049] Further, functional layer 7 is solidified on one side of reinforcing layer 5, and part of functional layer 7 is embedded in the gap position between reinforcing rib 6 and solidified with reinforcing rib 6.

[0050] Further, it further includes simulation layer 8, simulation layer 8 is solidified on the side of functional layer 7 away from reinforcing layer 5, and simulation layer 8 is used for forming metal appearance.

[0051] Through the arrangement of simulation layer 8, the simulation effect of the model can be improved, and the teaching effect is improved.

[0052] Reference Figures 3-11 A cutting teaching model is made of the above-mentioned 3D printing multilayer structure, and includes machine tool model 9, clamp unit 10 and cutting unit 11 arranged on machine tool model 9.

[0053] Further, it further includes regulating module 12, regulating module 12 includes base block 13 and cooperation section 14, at least one fixing head 15 is arranged on base block 13, fixing head 15 is connected with base block 13 through elastic member, cooperation section 14 is arranged with clamping groove 16 used for cooperating with fixing head 15 along the length direction, cooperation section 14 is arranged in a ring shape or a straight line shape, fixing head 15 is clamped with clamping groove 16 to limit the movement of fixing head 15 relative to cooperation section 14, in the embodiment, the elastic member is an elastic sheet, and both ends of the elastic sheet are respectively connected with fixing head 15 and base block 13.

[0054] Specifically, the elastic member and fixing head 15 are made of functional layer 7, and base block 13 is made of core board 1 and outer plate 2.

[0055] Further, the cutting unit 11 comprises a mounting head 17 and a three-dimensional moving device connected with the mounting head 17 and used to drive the mounting head 17 to move in three dimensions, the three-dimensional moving device comprising an X-axis moving seat 18, a Y-axis moving seat 19 and a Z-axis moving seat 20.

[0056] With reference to Figures 3-4 , the X-axis moving seat 18 is slidingly connected with the machine tool model 9 and is provided with the regulating module 12 at the connection position, specifically, the base blocks 13 are provided in multiple numbers and symmetrically on the X-axis moving seat 18, the matching segments 14 are linear, the matching segments 14 correspond to the base blocks 13 and are fixedly connected with the machine tool model 9, in use, the symmetrically arranged base blocks 13 and matching segments 14 are used to realize the limited movement of the X-axis moving seat 18, and meanwhile, when the X-axis moving seat 18 moves forward and backward, the clamping of the fixing heads 15 and the clamping grooves 16 is used to realize the position locking of the X-axis moving seat 18 and the machine tool model 9.

[0057] In another mode, the base blocks 13 can also be arranged on the machine tool model 9, and the matching segments 14 are arranged on the X-axis moving seat 18 to achieve the same effect as the present application.

[0058] Specifically, the X-axis moving seat 18, the Y-axis moving seat 19 and the Z-axis moving seat 20 are all made of the core plate 1 and the outer plate 2, and the matching segments 14 are made of the functional layer 7 and connected to one side of the outer plate 2.

[0059] With reference to Figure 6 , the Y-axis moving seat 19 is slidingly connected with the X-axis moving seat 18 and is provided with the regulating module 12 at the connection position, specifically, the base blocks 13 are provided in multiple numbers and symmetrically on the X-axis moving seat 18, the matching segments 14 are linear, the matching segments 14 correspond to the base blocks 13 and are fixedly connected with the Y-axis moving seat 19, in use, the symmetrically arranged base blocks 13 and matching segments 14 are used to realize the limited movement of the Y-axis moving seat 19, and meanwhile, when the Y-axis moving seat 19 moves forward and backward, the clamping of the fixing heads 15 and the clamping grooves 16 is used to realize the position locking of the Y-axis moving seat 19 and the X-axis moving seat 18.

[0060] In another mode, the base blocks 13 can also be arranged on the Y-axis moving seat 19, and the matching segments 14 are arranged on the X-axis moving seat 18 to achieve the same effect as the present application.

[0061] With reference to Figure 7, Z-axis moving seat 20 and Y-axis moving seat 19 slip connection and set regulating module 12 at the junction, specifically, the number of base block 13 is multiple and symmetrically arranged in Y-axis moving seat 19, cooperation section 14 is linear, cooperation section 14 corresponds with base block 13 and is fixedly connected with Z-axis moving seat 20, in use, through the symmetrically arranged cooperation section 14 and base block 13, the limited movement of Z-axis moving seat 20 is realized, at the same time, when Z-axis moving seat 20 moves forward and backward, through the clamping of fixed head 15 and clamping groove 16, the position locking of Z-axis moving seat 20 and Y-axis moving seat 19 is realized.

[0062] In another way, base block 13 can also be arranged on Z-axis moving seat 20, and cooperation section 14 is arranged on Y-axis moving seat 19 to achieve the same effect as the application.

[0063] Further, mounting head 17 is arranged at the lower end of Z-axis moving seat 20 and corresponds to clamp unit 10.

[0064] Further, when cooperation section 14 is linear, one end of base block 13 extends outward to form limiting end 21, limiting end 21 is made of functional layer 7 and is fixed with base block 13, and cooperation section 14 is provided with sliding groove 22 along the length direction for limiting the sliding of limiting end 21, when limiting end 21 contacts with sliding groove 22, fixed head 15 is clamped with clamping groove 16.

[0065] The movement of X-axis moving seat 18, Y-axis moving seat 19 and Z-axis moving seat 20 is limited by the cooperation of limiting end 21 and sliding groove 22.

[0066] Referring to Figure 8 , clamp unit 10 includes workbench 23, adjusting seat 24 and connecting seat 25, workbench 23, adjusting seat 24 and connecting seat 25 are formed by fixing core plate 1 and outer plate 2.

[0067] Further, connecting seat 25 is rotatably connected with machine tool model 9 and regulating module 12 is arranged at the connecting position, specifically, the number of base block 13 is one and is fixedly connected with the model body, cooperation section 14 is annular and is sleeved outside base block 13, in this embodiment, the number of fixed head 15 is 2 and is symmetrically arranged along base block 13, at the same time, cooperation section 14 is fixedly connected with connecting seat 25, further, the first limiting rod 26 is arranged on one side of the base, the first limiting ring 27 corresponding to the first limiting rod 26 is arranged on the connecting seat 25 and is rotatably connected with the first limiting rod 26, the position stability of connecting seat 25 after moving is ensured through the first limiting rod 26 and the first limiting ring 27, at the same time, the position locking of connecting seat 25 after rotating relative to machine tool model 9 is realized through cooperation section 14 and base block 13.

[0068] Further, adjusting seat 24 is horizontally arranged and is fixed with connecting seat 25, so that the position adjustment of adjusting seat 24 is realized by rotating connecting seat 25.

[0069] With reference to Figures 8-9 , the workbench 23 is arranged above the adjusting seat 24, and the workbench 23 is rotationally connected with the adjusting seat 24 through the control module 12. Specifically, the base block 13 is in number one and fixedly connected with the workbench 23, and the cooperation section 14 is annular and sleeved outside the base block 13. In this embodiment, the fixed head 15 is in number one and symmetrically arranged along the base block 13. Meanwhile, the cooperation section 14 is fixedly connected with the adjusting seat 24. Further, the base is provided with a second limiting rod 28, and the adjusting seat 24 is provided with a second limiting ring 29 corresponding to the second limiting rod 28 and rotationally connected with the second limiting rod 28. The position of the adjusting seat 24 after movement is ensured through the second limiting rod 28 and the second limiting ring 29, and the position of the adjusting seat 24 after rotation relative to the machine tool model 9 is locked through the cooperation section 14 and the base block 13.

[0070] The three-dimensional movement device is arranged on the connecting seat 25 and the workbench 23 to cooperate with the control module 12 to realize five-axis driving machining, thereby greatly simulating the effect.

[0071] With reference to Figures 8-10 , the workbench 23 and the fixed head 15 are both provided with magnetic members 30, and the workpiece model and the tool head model 32 can be conveniently installed through the magnetic members 30.

[0072] Specifically, the magnetic member 30 is annular and arranged at the bottom of the mounting head 17. The bottom of the mounting head 17 is provided with an indicator lamp 31 corresponding to the axis of the magnetic member 30. The tool head model 32 is further provided with a magnetic connecting member 33 at one end for magnetic connection with the magnetic member 30. The tool head model 32 is provided with an indicating hole 34 in the length direction for the indicator lamp 31 to pass through.

[0073] The magnetic connection between the tool head model 32 and the mounting head 17 can facilitate the disassembly and assembly of the tool head. Meanwhile, the setting of the indicating hole 34 and the indicator lamp 31 can facilitate students to observe the machining route, thereby improving the teaching effect.

[0074] With reference to Figure 11 , the workpiece model is further provided. The workpiece model is formed by curing the core plate 1 and the outer plate 2. The workpiece model comprises a base 35 and a plurality of cutting blocks 36. The base 35 and the cutting blocks 36 are both provided with magnets and are fixedly connected with each other through the magnets. The base 35 is provided with a clamping block 37 at the bottom. The workbench 23 is provided with a through mounting groove 38 corresponding to the clamping block 37. The mounting groove 38 is limitingly and slidably connected with the clamping block 37.

[0075] The setting of the base 35 and the plurality of cutting blocks 36 can facilitate the adjustment of the specific shape of the workpiece model according to the needs. Meanwhile, the cutting blocks 36 can be disassembled according to the machining route to complete the display of the cutting effect.

[0076] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A 3D-printed multilayer structure, characterized in that, include: A honeycomb core board (1) and an outer plate (2) surrounding the core board (1), wherein the outer plate (2) forms a connecting layer (3) in the direction of the core board (1), and part of the connecting layer (3) is cured in the same plane as the core board (1); The outer panel (2) includes a support layer (4) and a reinforcing layer (5) that are solidified sequentially from the inside to the outside. The reinforcing layer (5) has an interlocking structure on both sides. The interlocking structure is a reinforcing rib (6) that is integrally solidified with the reinforcing layer (5). The reinforcing rib (6) is arranged in a grid pattern. Functional layer (7) is solidified on one side of reinforcing layer (5), and part of the functional layer (7) is embedded in the gap between reinforcing ribs (6) and solidified with the reinforcing ribs (6).

2. The 3D printed multilayer structure according to claim 1, characterized in that, It also includes a simulation layer (8), which is solidified on the side of the functional layer (7) away from the reinforcing layer (5), and the simulation layer (8) is used to form a metallic appearance.

3. A cutting teaching model, fabricated from a 3D printed multi-layer structure as described in any one of claims 1-2, characterized in that, include: A machine tool model (9) is provided with a fixture unit (10) and a cutting unit (11); The control module (12) includes a base block (13) and a mating section (14). The base block (13) is provided with at least one fixing head (15). The fixing head (15) is connected to the base block (13) through an elastic element. The elastic element and the fixing head (15) are made of the same functional layer (7). The mating section (14) is provided with a slot (16) along its length for engaging with the fixing head (15). The mating section (14) is arranged in a ring or a straight line. The fixing head (15) engages with the slot (16) to restrict the movement of the fixing head (15) relative to the mating section (14). The cutting unit (11) includes a mounting head (17) and a three-dimensional moving device. The three-dimensional moving device is connected to the mounting head (17) and is used to drive the mounting head (17) to move in three dimensions. The three-dimensional moving device includes an X-axis moving seat (18), a Y-axis moving seat (19) and a Z-axis moving seat (20). The X-axis moving seat (18), the Y-axis moving seat (19) and the Z-axis moving seat (20) are all made of a core plate (1) and an outer plate (2). The mating section (14) is made of a functional layer (7) and connected to one side of the outer plate (2). The X-axis moving seat (18) is slidably connected to the machine tool model (9), and an adjustment module (12) is set at the connection point; The Y-axis moving seat (19) is slidably connected to the X-axis moving seat (18), and an adjustment module (12) is provided at the connection point; The Z-axis moving seat (20) is slidably connected to the Y-axis moving seat (19) and an adjustment module (12) is provided at the connection. The mounting head (17) is located at the lower end of the Z-axis moving seat (20) and corresponds to the clamp unit (10).

4. A cutting teaching model according to claim 3, characterized in that, The clamping unit (10) includes a worktable (23), an adjustment seat (24), and a connecting seat (25); The connecting seat (25) is rotatably connected to the machine tool model (9) and an adjustment module (12) is provided at the connection point; The adjusting seat (24) is horizontally positioned and fixed to the connecting seat (25); The workbench (23) is positioned above the adjustment seat (24), and the workbench (23) is rotatably connected to the adjustment seat (24) through the control module (12).

5. A cutting teaching model according to claim 4, characterized in that, Both the workbench (23) and the fixing head (15) are equipped with magnetic components (30).

6. A cutting teaching model according to claim 5, characterized in that, The magnetic component (30) is ring-shaped and located at the bottom of the mounting head (17). The bottom of the mounting head (17) is provided with an indicator light (31) for the axis of the magnetic component (30). It also includes a cutting head model (32). One end of the cutting head model (32) is provided with an adsorption component (33) that is magnetically connected to the magnetic component (30). The cutting head model (32) is provided with an indicator hole (34) along its length for the indicator light (31) to pass through.

7. A cutting teaching model according to claim 4, characterized in that, When the mating section (14) is annular, the number of fixing heads (15) is 2 and they are symmetrically arranged along the base block (13).

8. A cutting teaching model according to claim 3, characterized in that, When the mating section (14) is straight, one end of the base block (13) extends outward to form a limiting end (21). The limiting end (21) is made of the functional layer (7) and is solidified with the base block (13). The mating section (14) is provided with a sliding groove (22) along the length direction to slide and limit the limiting end (21). When the limiting end (21) contacts the sliding groove (22), the fixing head (15) engages with the slot (16).

9. A cutting teaching model according to claim 4, characterized in that, It also includes a workpiece model, which includes a base (35) and multiple cutting blocks (36). The base (35) and the cutting blocks (36) are each provided with magnets and are fixed to each other by magnetic attraction. The bottom of the base (35) is provided with a locking block (37). The worktable (23) is provided with a through mounting groove (38) corresponding to the locking block (37). The mounting groove (38) and the locking block (37) are limited to slide.

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