CN218273769U

CN218273769U - 3D prints interlude formula cubic lattice structure

Info

Publication number: CN218273769U
Application number: CN202222370437.7U
Authority: CN
Inventors: 许方雷; 张淑琴
Original assignee: Beijing Slt Technology Co ltd
Current assignee: Beijing Slt Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-01-10
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a 3D prints interlude formula cube lattice structure, including the lattice unit, the lattice unit sets up in a virtual cube, the lattice unit includes first components of a whole that can function independently and second components of a whole that can function independently, the second components of a whole that can function independently alternates in first components of a whole that can function independently, first components of a whole that can function independently and second components of a whole that can function independently constitute by a plurality of lattice roof beams; a first space quadrangle and a second space quadrangle are formed in the first split body through connected lattice beams, a third space quadrangle is formed in the second split body, and lattice units are divergently spliced to the periphery to form an infinitely-associated regular interpenetration type cubic lattice structure. The utility model discloses 3D prints interlude formula cube lattice structure and produces different performance in different plane directions, more has the variety, non-deformable fracture and fracture, the multiple scene application demand of adaptation.

Description

3D prints interlude formula cubic lattice structure

Technical Field

The utility model belongs to the technical field of lattice structure technique and specifically relates to a 3D prints interlude formula cube lattice structure.

Background

3D printing is a rapid prototyping technique, which is a technique that constructs an object by printing layer by layer using an adhesive material, such as powdered metal or resin, based on a digital model file. The possibility of using a complex lattice structure to prepare various parts and products is realized through an advanced production method of 3D printing, and different lattice structures can be integrated into the design through forms of repetition, combination, splicing and the like, so that different functions and appearances are realized. The lattice structure can be varied in microcosmic and macroscopic aspects, different lattice structures and lattice structures printed by different materials can show completely different mechanical properties, so that how to design a 3D printing product through the shape, size, hierarchical structure and material composition of the lattice is an important technical problem to maximally improve the product performance.

The atoms inside the crystal are arranged according to a certain geometric rule. For ease of understanding, when an atom is considered to be a sphere, a crystal is a substance formed by regularly stacking small spheres. In order to visually represent the rules of atomic arrangement in the crystal, atoms can be simplified into one point, and the points are connected by imaginary lines to form a space lattice with obvious regularity. This space lattice, which represents the regular arrangement of atoms in a crystal, is called a lattice.

The crystallography lattice is a geometric figure which shows that ions, atoms, molecules and the like in a crystal structure are common periodicity in three-dimensional space distribution. Three mutually non-coplanar basis vectors reflecting the three-dimensional periodicity of the crystal structure are linearly combined with integers m, n and p to obtain a translation vector group (m, n, p =0, ± 1, ± 2 \8230;), and all vectors in the translation vector group act on the origin of dot matrix points one by one, so that a three-dimensional space dot matrix formed by vector end points can be derived. The lattice and the corresponding translational group are respectively a geometrical form and an algebraic form reflecting the periodicity of the crystal structure. If the adjacent lattice points are connected by the line segments corresponding to the basis vectors, the lattice corresponding to the crystal structure is derived.

The existing supporting structure made of a single lattice structure such as a pyramid structure, a tetrahedron structure and the like has the defects of shock absorption effect, structural stability and supporting capability.

SUMMERY OF THE UTILITY MODEL

To the technical problem that exists, the utility model discloses an aim at: the 3D printing alternate type cubic lattice structure has the advantages of being not prone to deformation and cracking.

In order to achieve the above object, the utility model provides a following technical scheme:

A3D printing alternate type cubic lattice structure comprises lattice units, wherein the lattice units are arranged in a virtual cube and comprise first splits and second splits, the second splits are alternate in the first splits, and the first splits and the second splits are formed by a plurality of lattice beams;

the first sub-body comprises two first nodes arranged oppositely left and right, two second nodes respectively positioned below the first nodes and two third nodes arranged oppositely front and back, the first nodes and the third nodes are connected through the lattice beams to form a first space quadrangle, the second nodes and the third nodes are connected through the lattice beams to form a second space quadrangle, and each first node is further provided with two lattice beams extending to the top point above the virtual cube;

the second cell body includes that two are controlled the fourth node that sets up relatively, two relative fifth nodes that set up around and one is located the inboard sixth node of virtual cube, the fourth node is located the top of first node, the fifth node is located the top of third node, pass through between fourth node and the fifth node the lattice beam is connected and is formed the third space quadrangle, the sixth node links to each other with the fifth node through the lattice beam respectively, still be provided with two lattice beams that extend downwards on the sixth node.

Preferably, the two first nodes are located at the center of the face of the left side and the right side of the virtual cube, the two second nodes are located at the center of the edge of the bottom of the left side and the right side of the virtual cube, and the two third nodes are located on the front side and the rear side of the virtual cube.

Preferably, the two fourth nodes are located at the centers of the edges at the top parts of the left and right sides of the virtual cube, and the two fifth nodes are located on the front and rear side surfaces of the virtual cube.

Preferably, the sides of the first space quadrangle and the third space quadrangle on the same side are parallel to each other.

Preferably, the diameter of the lattice beam is 1.2mm to 2mm.

Preferably, a plurality of the lattice units are connected to form the lattice structure, and the lattice units adjacent in the height direction are mirror-symmetrical along the top surfaces of the virtual cubes attached to each other.

Because of the application of above-mentioned technical scheme, compared with the prior art, the utility model has the following advantage:

the utility model discloses 3D prints interlude formula cube lattice structure's lattice unit includes the lattice unit, the lattice unit sets up in a virtual cube, the lattice unit includes first components of a whole that can function independently and second components of a whole that can function independently, the second components of a whole that can function independently alternates in first components of a whole that can function independently, first components of a whole that can function independently and second components of a whole that can function independently constitute by a plurality of lattice girders, first space quadrangle and second space quadrangle have been formed through the lattice girder that links to each other in the first components of a whole that can function independently, third space quadrangle has been formed in the second components of a whole that can function independently, the lattice unit is to the regular form interlude formula cube lattice structure of unlimited relevance of concatenation constitution to dispersing the concatenation all around, this kind of structure produces different performance in different plane directions, more has the variety, non-deformable fracture and fracture, the multiple scene of adaptation application demand.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a perspective view of a lattice unit of the 3D printed interpenetrating cubic lattice structure of the present invention;

fig. 2 is a perspective view of a first split of a lattice unit of the 3D printing interpenetrating cubic lattice structure of the present invention;

fig. 3 is a perspective view of a second segment of a lattice unit of the 3D printed interpenetrating cubic lattice structure of the present invention;

fig. 4 is a left view of a lattice unit of the 3D printed interleaved cubic lattice structure of the present invention;

fig. 5 is a schematic diagram of stacking lattice units of the 3D printed interpenetrating cubic lattice structure of the present invention;

fig. 6 is the utility model discloses a 3D prints schematic diagram of interlude formula cubic lattice structure.

Wherein: 1. a first split body; 11. a first node; 12. a second node; 13. a third node; 14. a first spatial quadrilateral; 15. a second spatial quadrilateral; 2. a second body; 21. a fourth node; 22. a fifth node; 23. a sixth node; 24. a third spatial quadrilateral; 3. a lattice beam; 4. a lattice unit; 5. a virtual cube.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

As shown in the accompanying drawing 1, the utility model discloses 3D prints interlude formula cube lattice structure, including the lattice unit, lattice unit 4 sets up in a virtual cube 5, and lattice unit 4 includes first components of a whole that can function independently 1 and second components of a whole that can function independently 2, and second components of a whole that can function independently 2 alternates in first components of a whole that can function independently 1, and first components of a whole that can function independently 1 and second components of a whole that can function independently 2 constitute by a plurality of lattice roof beams 3.

As shown in fig. 2, the first sub-body 1 includes two first nodes 11 disposed opposite to each other in the left-right direction, two second nodes 12 disposed below the first nodes 11, and two third nodes 13 disposed opposite to each other in the front-back direction, the first nodes 11 and the third nodes 13 are connected by the lattice beams 3 to form a first space quadrangle 14, the second nodes 12 and the third nodes 13 are connected by the lattice beams 3 to form a second space quadrangle 15, and the two space quadrangles are overlapped and reversely bent at the third nodes 13. Each first node 11 is also connected to two lattice beams 3 extending to vertices above the virtual cube 5. In this embodiment, two first nodes 11 are located at the center of the face of the left and right sides of the virtual cube 5, two second nodes 12 are located at the center of the edge of the bottom of the left and right sides of the virtual cube 5, two third nodes 13 are located on the front and rear side faces of the virtual cube 5, and the first split body 1 is symmetrical on the left and right sides.

As shown in fig. 3, the second segment 2 includes two fourth nodes 21 disposed opposite to each other in the left-right direction, two fifth nodes 22 disposed opposite to each other in the front-back direction, and a sixth node 23 located inside the virtual cube 5, the fourth node 21 is located above the first node 11, the fifth node 22 is located above the third node 13, and the fourth node 21 and the fifth node 22 are connected by the lattice beam 3 to form a third spatial quadrangle 24. The sides of the first spatial quadrilateral 14 and the third spatial quadrilateral 24 on the same side are parallel to each other. The sixth nodes 23 are connected to the fifth nodes 22 through the lattice beams 3, respectively, and the sixth nodes 23 further have two lattice beams 3 extending downward. In this embodiment, two fourth nodes 21 are located at the center of the top edges of the left and right sides of the virtual cube 5, and two fifth nodes 22 are located on the front and rear sides of the virtual cube 5. The first sub-body 1 encloses the second sub-body 2.

As shown in fig. 5 and 6, a plurality of lattice units 4 are connected to form a lattice structure, and are divergently spliced back and forth and left and right to form an infinitely-related regular interpenetrating lattice structure. The adjacent lattice cells 4 in the height direction are mirror-symmetrical along the top surfaces of the virtual cubes 5 attached to each other, and the lattice beams 3 extending outward in the lattice cells 4 and not closed are butted against each other. The diameter of the lattice beam 3 is preferably 1.2mm to 2mm.

The utility model discloses 3D prints interlude formula cube lattice structure surface and forms the wavy of height fluctuation, top surface and bottom surface symmetry, and first space quadrangle 14, second space quadrangle 15, third space quadrangle 24's the shape of bending produce different performance in the equidirectional not, as shown in figure 6, when to A when bending, the resistance of buckling is little for the fluctuation messenger of regularity, realizes easily buckling, when to B when bending, the resistance of buckling is big, has bending resistance characteristic. The lattice structure with different properties in different directions is very suitable for being applied to products such as soles, cushions and the like with double requirements on the bending property and the extrusion resistance of materials. From the analysis of mechanics angle, compare other structures, this structure has more the variety, and non-deformable is difficult for moreover, is difficult for fracture and fracture to have advantages such as shock attenuation, sound insulation, thermal-insulated and extremely strong weatherability. The infinitely-associated interpenetration type cubic lattice structure is adaptive to various scene application requirements, and has multiple advantages of diversity, high strength, difficult deformation, strong impact resistance, good buffering property, sound insulation, heat absorption and the like.

The utility model discloses 3D prints interlude formula cube lattice structure and adopts 3D to print photocuring technique (SLA), and raw and other materials are liquid photosensitive resin, can pile up the back through the lattice unit that 3D printed and cut into the shape that needs. Physical property tests are carried out on the embodiment comprising the technical scheme, the tested sample block is a square of 10cm multiplied by 2cm, and the compression deformation of the sample block is 25 percent and can reach the range of 15 percent to 20 percent in some cases; resilience greater than 46%, and in some cases may reach greater than 55%; the hardness (durometer AskerC) of the swatches is 40 to 80, depending on the thickness of the connecting rod and the type of product applied; the block has a tensile strength of at least 8kg/cm, an elongation at break of 200 to 400%, generally above 320%, and a tear strength of 10kg/cm.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a 3D prints interlude formula cubic lattice structure, includes lattice unit, its characterized in that:

the lattice unit is arranged in a virtual cube and comprises a first split and a second split, the second split is inserted into the first split, and the first split and the second split are formed by a plurality of lattice beams;

the second subdivision body comprises two fourth nodes oppositely arranged left and right, two fifth nodes oppositely arranged front and back and a sixth node located on the inner side of the virtual cube, the fourth node is located above the first node, the fifth node is located above the third node, the fourth node and the fifth node are connected through the lattice beams to form a third space quadrangle, the sixth node is connected with the fifth node through the lattice beams respectively, and the sixth node is further provided with two lattice beams extending downwards.

2. The 3D printed interpenetrating cubic lattice structure of claim 1, wherein: the two first nodes are located at the center of the face of the left side and the right side of the virtual cube, the two second nodes are located at the center of the edge of the bottom of the left side and the right side of the virtual cube, and the two third nodes are located on the front side face and the rear side face of the virtual cube.

3. The 3D printed interpenetrating cubic lattice structure of claim 1, wherein: the two fourth nodes are located in the centers of edges at the tops of the left side and the right side of the virtual cube, and the two fifth nodes are located on the front side and the rear side of the virtual cube.

4. The 3D printed interpenetrating cubic lattice structure of claim 1, wherein: the sides of the first space quadrangle and the third space quadrangle on the same side are parallel to each other.

5. The 3D printed interpenetrating cubic lattice structure of claim 1, wherein: the diameter of the lattice beam is 1.2mm-2mm.

6. The 3D printed interpenetrating cubic lattice structure of claim 1, wherein: the lattice units are connected to form the lattice structure, and the adjacent lattice units in the height direction are in mirror symmetry along the top surfaces of the virtual cubes which are attached to each other.