A winding die and winding method for three-dimensional winding lattice structure

Abstract

A winding mold and winding method for a three-dimensional winding lattice structure belongs to the technical field of lattice structure preparation. In order to solve the problem that the existing three-dimensional lattice structure adopts a fixing method of welding or bonding the nodes during preparation, which makes the manufacturing process difficult, increases the manufacturing workload, and leads to low preparation efficiency, the present invention includes eight winding support units, which are evenly divided into two winding support unit groups, and the two winding support unit groups are arranged in a mirror-image arrangement stacked up and down. The four winding support units in each winding support unit group are distributed in a matrix, and the two adjacent winding support units are mirror-imaged along the joint surface. The iron wire to be wound is divided into multiple shaped iron wire segments and arranged on the eight winding support units. The eight winding support units fix the multiple iron wire segments through multiple vertex fixing buckles, multiple face center fixing buckles, and multiple edge center fixing buckles. The present application is mainly used to manufacture three-dimensional winding lattice structures.

Description

Technical Field

[0001] The present invention relates to the technical field of lattice structure preparation, and in particular to a winding mold and a winding method for a three-dimensional winding lattice structure. Background Art

[0002] As a new type of porous material, the lattice structure has the characteristics of light weight and excellent mechanical properties. It is a new generation of load-bearing and buffering energy-absorbing material.

[0003] Currently, additive manufacturing is the primary method for manufacturing lattice structures. This method faces challenges such as limited material options and low manufacturing efficiency. Furthermore, the surface of the lattice structures produced using additive manufacturing often contains unmelted particles, which affects surface finish. In areas with fewer unmelted particles, the mechanical properties of the material also weaken.

[0004] For example, the winding structure shown in patent US20100071300A1 requires the metal wire at each node to be fixed by welding or gluing. This manufacturing method greatly increases the difficulty and workload of the manufacturing process, which is not conducive to practical application. Therefore, based on the preparation characteristics of the winding structure, it is very practical to develop a winding mold and winding method for a three-dimensional winding lattice structure to solve the problem of low efficiency in the existing lattice structure preparation. Summary of the Invention

[0005] In order to solve the problem that the existing three-dimensional lattice structure adopts a fixing method of welding or bonding the nodes during preparation, which makes the manufacturing process difficult, increases the manufacturing workload, and leads to low preparation efficiency, the present invention provides a winding mold and winding method for a three-dimensional winding lattice structure;

[0006] A winding die for a three-dimensional winding lattice structure, comprising eight winding support units, the eight winding support units being evenly divided into two winding support unit groups, and the two winding support unit groups being mirror-imaged and stacked up and down, the four winding support units in each winding support unit group being distributed in a matrix, and the two adjacent winding support units being mirror-imaged along the joint surface, dividing the iron wire to be wound into multiple The eight winding support units fix the multiple wire segments through multiple vertex fixing buckles, multiple face center fixing buckles and multiple edge center fixing buckles;

[0007] Furthermore, the winding support unit includes a connecting frame and eight splicing blocks, the eight splicing blocks are distributed at the eight vertices of a regular cube, the connecting frame is located inside the regular cube where the eight splicing blocks are located, and the eight splicing blocks are connected by the connecting frame, the connecting frame includes eight connecting ends, and each connecting end is correspondingly provided to a splicing block;

[0008] Furthermore, the eight splicing blocks include four non-protrusion splicing blocks, three double-protrusion splicing blocks and one triple-protrusion splicing block, wherein the four non-protrusion splicing blocks are distributed in a rectangular coordinate system, one non-protrusion splicing block is located at the origin of the rectangular coordinate system, and the remaining three non-protrusion splicing blocks are respectively located in the positive direction of the X axis, the positive direction of the Y axis and the positive direction of the Z axis in the rectangular coordinate system, the three double-protrusion splicing blocks are respectively located in the XY plane, the XZ plane and the ZY plane in the rectangular coordinate system, the triple-protrusion splicing block is located in the XYZ space, and the four non-protrusion splicing blocks, the three double-protrusion splicing blocks and the one triple-protrusion splicing block are connected by a connecting frame;

[0009] Furthermore, the non-protrusion splicing block is buckled on a corresponding connecting claw in the connecting frame, and the non-protrusion splicing block is provided with three No. 1 splicing surfaces, and each No. 1 splicing surface is perpendicularly intersected with the other two No. 1 splicing surfaces, and a No. 1 wire placement groove is processed on the intersecting edge of every two adjacent No. 1 splicing surfaces, and the three No. 1 wire placement grooves are connected;

[0010] Furthermore, the double-raised splicing block is buckled on a corresponding connecting claw in the connecting frame, and three No. 2 splicing surfaces are provided on the double-raised splicing block, and each No. 2 splicing surface is perpendicularly intersected with the other two No. 2 splicing surfaces, and a No. 2 wire placement groove is processed on the intersecting edge of every two adjacent No. 2 splicing surfaces, and the three No. 2 wire placement grooves are connected, and two of the three No. 2 splicing surfaces are respectively fixed with a No. 1 buckling protrusion, and the two No. 2 splicing surfaces fixed with the No. 1 buckling protrusion are both outer surfaces of the mold in the winding mold;

[0011] Furthermore, the three-raised splicing block is buckled on a corresponding connecting claw in the connecting frame. The three-raised splicing block is provided with three No. 3 splicing surfaces, and each No. 3 splicing surface is perpendicularly intersected with the other two No. 3 splicing surfaces. A No. 3 wire placement groove is processed on the intersecting edge of each two adjacent No. 3 splicing surfaces, and the three No. 3 wire placement grooves are connected. A No. 2 buckle protrusion is fixed on each of the three No. 3 splicing surfaces:

[0012] Furthermore, the interior of the vertex fixing buckle is processed with three No. 4 wire placement grooves, and each No. 4 wire placement groove is correspondingly matched with a No. 3 wire placement groove. The outer wall of the vertex fixing buckle is processed with three No. 1 buckle mounting grooves, and each No. 1 buckle mounting groove is correspondingly matched with a No. 2 buckle mounting protrusion.

[0013] Furthermore, four No. 5 wire placement grooves are equidistantly processed on the outer side wall of the face-centered fixing buckle along the circumferential direction, and each No. 5 wire placement groove is correspondingly matched with the wire channel formed by the combination of two adjacent No. 1 wire placement grooves;

[0014] Furthermore, the rib core fixing buckle is an L-shaped buckle, and two No. 2 buckle mounting grooves are respectively processed on the horizontal part and the vertical part of the L-shaped buckle, and each No. 2 buckle mounting groove is correspondingly matched with a No. 1 buckle mounting protrusion. The interior of the L-shaped buckle is processed with four No. 6 wire placement grooves, and each No. 6 wire placement groove is correspondingly matched with a No. 2 wire placement groove. Two of the four No. 6 wire placement grooves are located at the junction of the horizontal part and the vertical part of the L-shaped buckle, and the remaining two of the four No. 6 wire placement grooves are located on the horizontal part and the vertical part of the L-shaped buckle, and the four No. 6 wire placement grooves are connected;

[0015] A winding method for a three-dimensional winding lattice structure is achieved by the following steps:

[0016] Step 1: Assemble eight winding support units to form a winding mold, and bend several of them 90 degrees to form The shaped wires are arranged in the winding mold to form 6 main supporting wire bundles. The 6 main supporting wire bundles are scattered outward with the center of the winding mold as the center, and ensure that the winding mold is equipped with main supporting wire bundles in the six directions of up, down, front, back, left and right.

[0017] Step 2: Calculate the number of winding turns and use a twisting tool to wind and shape the six main support wire bundles extending from the center outward in the winding mold in step 1, and fix the breakpoints in the main support wire bundles after shaping by tying them;

[0018] Step 3: Bend several of the roots in step 1 90 degrees. The shaped iron wires are scattered to the extension portion on the outer surface of the winding die to form a plurality of faceted iron wire bundles, and the plurality of faceted iron wire bundles distributed on the outer surface of the winding die are fixed by a plurality of vertex fixing buckles, a plurality of face center fixing buckles and a plurality of face center fixing buckles;

[0019] Step 4: Calculate the number of winding turns and use a twisting tool to wind and shape the multiple faceted wire bundles fixed on the outer surface of the winding mold in step 3. The multiple shaped faceted wire bundles and the six main support wire bundles shaped in step 2 together form the final lattice structure.

[0020] Step 5: After the final lattice structure in step 4 is wound, the multiple vertex fixing clips, multiple face center fixing clips and multiple edge center fixing clips are removed from the winding mold and recycled for standby use. The winding support unit is destroyed with a blunt object. After the winding support unit is destroyed, the lattice structure obtained in step 4 is taken out to complete the demolding work.

[0021] The beneficial effects of this application compared to the prior art are as follows:

[0022] The present application proposes a winding mold and winding method for a three-dimensional winding lattice structure, wherein the winding mold is composed of a plurality of winding support units, and a groove for accommodating a wire segment is processed on the outer side of each winding support unit. The wire segment can be positioned by the winding mold, and the wire segment can be fixed at the same time with the help of a snap structure, thereby improving the stability of subsequent winding work. Although the single winding support unit in the mold provided by the present application is disposable, the locking snap can be reused, and the device has a relatively low production cost and is easy to demold, which is suitable for mass production.

[0023] The present application proposes a winding mold and winding method for a three-dimensional winding lattice structure, which uses the bent wire segments as the basic components of the lattice structure, and uses the winding mold described in the present application as a support to directly piece together the wire bundles formed by multiple bent wire segments into the outline of the lattice structure to be prepared. The wire bundles are wound with the help of tools such as pliers to achieve the preparation of a three-dimensional winding lattice structure. This is different from the traditional method of first winding a whole steel wire and then fixing it. First, it reduces the splicing process. Second, it overcomes the disadvantages of weak stability and easy deformation in the splicing process, which affects the finished shape of the three-dimensional winding lattice structure. Third, it reduces the fixing process. Compared with the traditional method of fixing multiple nodes in a three-dimensional winding lattice structure by welding or bonding, the present application only needs to bind and fix the splicing points of two adjacent wound wire bundles, which greatly reduces the difficulty of the manufacturing process, reduces the manufacturing workload, and improves the preparation efficiency of the three-dimensional winding lattice structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the winding support unit in the winding mold described in this application;

[0025] Figure 2 This is a schematic structural diagram of the winding mold without protruding splicing blocks in this application;

[0026] Figure 3 This is a schematic structural diagram of the double-convex splicing block in the winding mold described in this application;

[0027] Figure 4 This is a schematic structural diagram of the three-raised splicing block in the winding mold described in this application;

[0028] Figure 5 This is a schematic diagram of the structure of the vertex fixing buckle in the winding mold described in this application;

[0029] Figure 6 This is a schematic diagram of the structure of the face center fixing buckle in the winding mold described in this application

[0030] Figure 7This is a schematic diagram of the structure of the rib core fixing buckle in the winding mold described in this application;

[0031] Figure 8 This is a schematic structural diagram of the winding mold described in this application;

[0032] Figure 9 This is a schematic diagram of the morphology of the lattice structure to be prepared in this application;

[0033] In the figure, 1 is a connecting frame, 2 is a non-protrusion splicing block, 21 is a No. 1 wire placement slot, 3 is a double-protrusion splicing block, 31 is a No. 2 wire placement slot, 32 is a No. 1 buckle-mounted protrusion, 4 is a three-protrusion splicing block, 41 is a No. 3 wire placement slot, 42 is a No. 2 buckle-mounted protrusion, 5 is a vertex fixing buckle, 51 is a No. 1 buckle-mounted slot, 52 is a No. 4 wire placement slot, 6 is a face center fixing buckle, 61 is a No. 5 wire placement slot, 7 is a rib center fixing buckle, 71 is a No. 2 buckle-mounted slot, 72 is a No. 6 wire placement slot, 8 is a main support wire bundle and 9 is a face wire bundle. DETAILED DESCRIPTION

[0034] Specific implementation method 1: Combination Figures 1 to 9 This embodiment describes a winding die for a three-dimensional winding lattice structure. The winding die includes eight winding support units, which are evenly divided into two winding support unit groups. The two winding support unit groups are mirror-imaged and stacked up and down. The four winding support units in each winding support unit group are distributed in a matrix, and the two adjacent winding support units are mirror-imaged along the joint surface, dividing the iron wire to be wound into multiple The shaped wire segments are arranged on eight winding support units, and the eight winding support units fix the multiple wire segments through multiple vertex fixing buckles 5, multiple face center fixing buckles 6 and multiple edge center fixing buckles 7.

[0035] The winding die for a three-dimensional winding lattice structure provided in this embodiment is composed of eight winding support units. This design can be beneficial to The shaped wire segments are arranged, especially the wire segments inside the three-dimensional winding lattice structure are arranged. The mold is used as the winding shaping basis to directly piece together the wire bundle formed by multiple bent wire segments into the contour shape of the lattice structure to be prepared. The arranged wire segments are fixed by multiple snap structures, which can also improve the stability of the wire bundle in the subsequent winding process and effectively prevent the occurrence of winding deformation.

[0036] Specific implementation method 2: Combination Figures 1 to 9This embodiment differs from the first embodiment in that the winding support unit includes a connecting frame 1 and eight splicing blocks. The eight splicing blocks are arranged at the eight vertices of a regular cube. The connecting frame 1 is located inside the regular cube where the eight splicing blocks are located. The eight splicing blocks are connected by the connecting frame 1. The connecting frame 1 includes eight connecting ends, each of which is corresponding to a splicing block. The other components and connection methods are the same as those of the first embodiment.

[0037] In this embodiment, the connecting frame 1 and the eight splicing blocks are integrally formed and are usually prepared by 3D printing.

[0038] Specific implementation method three: Combination Figures 1 to 9 This embodiment is described. The difference between this embodiment and the second embodiment is that the eight splicing blocks include four non-protrusion splicing blocks 2, three double-protrusion splicing blocks 3, and one triple-protrusion splicing block 4. The four non-protrusion splicing blocks 2 are distributed in a rectangular coordinate system, one non-protrusion splicing block 2 is located at the origin of the rectangular coordinate system, and the remaining three non-protrusion splicing blocks 2 are respectively located in the positive direction of the X axis, the positive direction of the Y axis, and the positive direction of the Z axis in the rectangular coordinate system. The three double-protrusion splicing blocks 3 are respectively located in the XY plane, the XZ plane, and the ZY plane in the rectangular coordinate system. The triple-protrusion splicing block 4 is located in the XYZ space. The four non-protrusion splicing blocks 2, the three double-protrusion splicing blocks 3, and the one triple-protrusion splicing block 4 are connected by a connecting frame 1. Other components and connection methods are the same as those in the second embodiment.

[0039] Combined with the description of the specific embodiment 1 and the specific embodiment 2, the splicing blocks adopt three forms because the splicing stability and convenience of the winding support unit after being combined into the winding mold are taken into consideration, as well as the stability of the buckle structure in practical applications. Figure 8 As shown, the four non-protrusion splicing blocks 2 are all located at the body center and the face center of the winding mold after splicing, the three double-protrusion splicing blocks 3 are all located at the edge center of the winding mold after splicing, and the three-protrusion splicing blocks 4 are all located at the edges and corners of the winding mold after splicing. The eight non-protrusion splicing blocks 2 located at the body center of the winding mold are formed into a regular cube structure after splicing, and 6 wire bundle channels are formed inside to accommodate the main supporting wire bundle 8 in the three-dimensional lattice structure. The wire bundle channels formed by four non-protruding splicing blocks 2, two double-protruding splicing blocks 3 at the edge center and three-protruding splicing blocks 4 at the corners, in conjunction with multiple vertex fixing buckles 5, multiple face center fixing buckles 6 and multiple edge center fixing buckles 7, are all used to accommodate the facet wire bundles 9 in the three-dimensional lattice structure. The difference between the main supporting wire bundles 8 and the facet wire bundles 9 is the different number of wire roots. The number of wire roots included in the main supporting wire bundles 8 is twice the number of wire roots included in the facet wire bundles 9.

[0040] Specific implementation method four: Combination Figures 1 to 9 This embodiment differs from the third embodiment in that the non-protrusion splicing block 2 is snap-fitted onto a corresponding connecting claw in the connecting frame 1. The non-protrusion splicing block 2 is provided with three numbered first splicing surfaces, each of which intersects perpendicularly with the other two. A numbered first wire placement slot 21 is machined on the intersecting edge of each two adjacent numbered first splicing surfaces, and all three numbered first wire placement slots 21 are connected. The rest of the components and connection method are the same as those in the third embodiment.

[0041] In this embodiment, the No. 1 wire placement groove 21 is an area for accommodating wire segments.

[0042] Specific implementation method five: Combination Figures 1 to 9 This embodiment differs from the fourth embodiment in that the double-raised splicing block 3 is snap-fitted onto a corresponding connecting claw in the connecting frame 1. The double-raised splicing block 3 is provided with three No. 2 splicing surfaces, each of which intersects perpendicularly with the other two No. 2 splicing surfaces. A No. 2 wire placement groove 31 is machined on the intersecting edges of every two adjacent No. 2 splicing surfaces, and the three No. 2 wire placement grooves 31 are interconnected. Two of the three No. 2 splicing surfaces are each affixed with a No. 1 snap-fitting protrusion 32, and both No. 2 splicing surfaces affixed with the No. 1 snap-fitting protrusion 32 are located on the outer side of the winding mold. Other components and connection methods are the same as those in the fourth embodiment.

[0043] In this embodiment, the No. 2 wire placement groove 31 is an area for accommodating wire segments, and the No. 1 buckle protrusion 32 is a positioning structure for cooperating with the rib core fixing buckle 7.

[0044] Specific implementation method six: combination Figures 1 to 9 This embodiment differs from the fifth embodiment in that the three-protrusion splicing block 4 is snap-fitted onto a corresponding connecting claw in the connecting frame 1. The three-protrusion splicing block 4 is provided with three number-three splicing surfaces, each of which intersects perpendicularly with the other two number-three splicing surfaces. A number-three wire placement groove 41 is machined on the intersecting edge of each two adjacent number-three splicing surfaces, and the three number-three wire placement grooves 41 are interconnected. A number-two snap-fitting protrusion 42 is affixed to each of the three number-three splicing surfaces. The remaining components and connection methods are the same as those of the fifth embodiment.

[0045] In this embodiment, the No. 3 wire placement groove 41 is an area for accommodating the wire segment, and the No. 2 buckle protrusion 42 is a positioning structure for cooperating with the vertex fixing buckle 5.

[0046] Specific implementation method seven: combination Figures 1 to 9This embodiment differs from the sixth embodiment in that the interior of the vertex fixing buckle 5 is machined with three No. 4 wire placement grooves 52, each of which is correspondingly configured with a No. 3 wire placement groove 41. The outer wall of the vertex fixing buckle 5 is machined with three No. 1 buckle mounting grooves 51, each of which is correspondingly configured with a No. 2 buckle mounting protrusion 42. The remaining components and connection methods are the same as those of the sixth embodiment.

[0047] In this embodiment, the No. 4 wire placement groove 52 cooperates with the No. 3 wire placement groove 41 to form a channel for the wire bundle. The No. 1 buckle groove 51 is an area used to limit the No. 2 buckle protrusion 42. The No. 2 buckle protrusion 42 and the No. 1 buckle groove 51 are tensioned to ensure the installation stability between the vertex fixing buckle 5 and the three-protrusion splicing block 4.

[0048] Specific implementation method eight: combination Figures 1 to 9 This embodiment differs from the seventh embodiment in that four No. 5 wire slots 61 are equidistantly formed along the circumference of the outer wall of the face-centered fixing clip 6. Each No. 5 wire slot 61 corresponds to a wire channel formed by combining two adjacent No. 1 wire slots 21. The remaining components and connection methods are the same as those of the seventh embodiment.

[0049] In this embodiment, the No. 5 wire placement groove 61 cooperates with the No. 1 wire placement groove 21 to form a channel for the wire bundle. The face center fixing buckle 6 cooperates with the non-protrusion splicing block 2 located at the center of the winding mold through the embedding groove at the bottom, so that the face center fixing buckle 6 is buckled on the four non-protrusion splicing blocks 2 located at the center of the winding mold, ensuring the integrity and stability of the wire bundle channel.

[0050] Specific implementation method nine: Combination Figures 1 to 9 This embodiment is described. This embodiment differs from the eighth embodiment in that the rib core fixing buckle 7 is an L-shaped buckle. Two No. 2 buckle mounting grooves 71 are machined on the horizontal and vertical portions of the L-shaped buckle, respectively. Each No. 2 buckle mounting groove 71 is correspondingly configured with a No. 1 buckle mounting protrusion 32. Four No. 6 wire placement grooves 72 are machined inside the L-shaped buckle. Each No. 6 wire placement groove 72 is correspondingly configured with a No. 2 wire placement groove 31. Two of the four No. 6 wire placement grooves 72 are located at the junction of the horizontal and vertical portions of the L-shaped buckle. The remaining two of the four No. 6 wire placement grooves 72 are located on the horizontal and vertical portions of the L-shaped buckle, respectively. The four No. 6 wire placement grooves 72 are connected. Other components and connection methods are the same as those of the eighth embodiment.

[0051] In this embodiment, the No. 6 wire placement groove 72 cooperates with the No. 2 wire placement groove 31 to form a channel for the wire bundle. The No. 2 buckle groove 71 is an area used to limit the No. 1 buckle protrusion 32. The tensioning setting of the No. 1 buckle protrusion 32 and the No. 2 buckle groove 71 is used to ensure the installation stability between the core fixing buckle 7 and the double-protrusion splicing block 3.

[0052] Specific implementation method ten: Combination Figures 1 to 9 This embodiment describes a method for winding a three-dimensional winding lattice structure. The method is implemented by the following steps:

[0053] Step 1: Assemble eight winding support units to form a winding mold, and bend several of them 90 degrees to form The shaped wires are arranged in the winding mold to form 6 main supporting wire bundles 8, which are scattered outward with the center of the winding mold as the center, and ensure that the main supporting wire bundles 8 are provided in the six directions of the winding mold: up, down, front, back, left and right;

[0054] Step 2: Calculate the number of winding turns, use a twisting tool to wind and shape the six main support wire bundles 8 extending from the center outward fixed in the winding mold in step 1, and fix the breakpoints in the main support wire bundles 8 after shaping by tying;

[0055] Step 3: Bend several of the roots in step 1 90 degrees. The shaped iron wires are scattered to the extension portion on the outer surface of the winding die to form a plurality of faceted iron wire bundles 9, and the plurality of faceted iron wire bundles 9 distributed on the outer surface of the winding die are fixed by a plurality of vertex fixing buckles 5, a plurality of face center fixing buckles 6 and a plurality of face center fixing buckles 7;

[0056] Step 4: Calculate the number of winding turns and use a screwing tool to wind and shape the multiple faceted wire bundles 9 fixed on the outer surface of the winding mold in step 3. The multiple shaped faceted wire bundles 9 and the six main support wire bundles 8 shaped in step 2 together form the final lattice structure.

[0057] Step 5: After the final lattice structure is wound in Step 4, the multiple vertex fixing clips 5, the multiple face center fixing clips 6, and the multiple edge center fixing clips 7 are removed from the winding mold and recycled for future use. The winding support unit is destroyed with a blunt instrument. After the winding support unit is destroyed, the lattice structure obtained in Step 4 is removed, completing the demolding process. The other components and connection methods are the same as those of Specific Embodiment 8.

[0058] The winding method of a three-dimensional winding lattice structure provided in the present application is different from the traditional method for preparing a three-dimensional winding lattice structure in that the traditional method for preparing a lattice structure is based on multiple vertical iron wires as the basic components of the structure, and multiple iron wire bundles are formed by winding and twisting multiple iron wires. Multiple iron wire bundles are used to build a configuration based on the target lattice structure, and the building nodes of the multiple iron wire bundles are welded or bonded. The present application uses bent iron wires as the basic components of the structure, and relies on a winding mold to first build a target lattice structure configuration with multiple bent iron wires, and fix the built iron wires with a snap-fit ​​structure, and then twist and wind the fixed iron wire bundles to form a complete lattice structure, and finally connect the breakpoints between each iron wire bundle by binding. The lattice structure is prepared using the winding method provided by the present application. In the process, first, the splicing process is reduced; second, the disadvantages of weak stability and easy deformation in the splicing process, which affect the shape of the finished product of the three-dimensional winding lattice structure, are overcome; third, the fixing process is reduced. Compared with the traditional method of fixing multiple nodes in the three-dimensional winding lattice structure by welding or bonding, the present application only needs to bind and fix the splicing points of two adjacent wound wire bundles, which greatly reduces the difficulty of the manufacturing process, reduces the manufacturing workload, and improves the preparation efficiency of the three-dimensional winding lattice structure. Moreover, since the fixing method between the wire bundles in the present application adopts binding instead of welding or bonding, there are relatively few restrictions on the optional materials for the preparation of the lattice structure, and the fixed points are not the node parts in the lattice structure, which is also conducive to improving the mechanical properties at the nodes, and indirectly increases the self-strength of the lattice structure.

[0059] The present invention has been disclosed as above with reference to preferred embodiments, but this is not intended to limit the present invention. Any technician familiar with the present invention can make slight changes or modifications to equivalent embodiments using the above-disclosed structures and technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A winding die for a three-dimensional winding lattice structure, characterized in that: The winding die includes eight winding support units, which are evenly divided into two winding support unit groups. The two winding support unit groups are stacked up and down in a mirror-image arrangement. The four winding support units in each winding support unit group are arranged in a matrix, and the two adjacent winding support units are mirror-imaged along the joint surface, dividing the iron wire to be wound into multiple " "-shaped iron wire segments are arranged on eight winding support units, and the eight winding support units fix the multiple iron wire segments through multiple vertex fixing buckles (5), multiple face center fixing buckles (6) and multiple edge center fixing buckles (7).

2. The winding die for three-dimensional winding lattice structure according to claim 1, characterized in that: The winding support unit comprises a connecting frame (1) and eight splicing blocks, wherein the eight splicing blocks are distributed at the eight vertices of a regular cube, the connecting frame (1) is located inside the regular cube where the eight splicing blocks are located, and the eight splicing blocks are connected via the connecting frame (1), and the connecting frame (1) comprises eight connecting ends, and each connecting end is provided corresponding to a splicing block.

3. The winding die for three-dimensional winding lattice structure according to claim 2, characterized in that: The eight splicing blocks include four non-protrusion splicing blocks (2), three double-protrusion splicing blocks (3) and one triple-protrusion splicing block (4), wherein the four non-protrusion splicing blocks (2) are distributed in a rectangular coordinate system, one non-protrusion splicing block (2) is located at the origin of the rectangular coordinate system, and the other three non-protrusion splicing blocks (2) are respectively located in the positive direction of the X axis, the positive direction of the Y axis and the positive direction of the Z axis in the rectangular coordinate system, the three double-protrusion splicing blocks (3) are respectively located in the XY plane, the XZ plane and the ZY plane in the rectangular coordinate system, and the triple-protrusion splicing block (4) is located in the XYZ space, and the four non-protrusion splicing blocks (2), the three double-protrusion splicing blocks (3) and the one triple-protrusion splicing block (4) are connected through a connecting frame (1).

4. The winding die for three-dimensional winding lattice structure according to claim 3, characterized in that: The non-protrusion splicing block (2) is buckled onto a corresponding connecting claw in the connecting frame (1); the non-protrusion splicing block (2) is provided with three No. 1 splicing surfaces, and each No. 1 splicing surface is arranged to intersect perpendicularly with the other two No. 1 splicing surfaces; a No. 1 wire placement groove (21) is processed on the intersecting edges of every two adjacent No. 1 splicing surfaces, and the three No. 1 wire placement grooves (21) are arranged in communication.

5. The winding die for three-dimensional winding lattice structure according to claim 4, characterized in that: The double-raised splicing block (3) is buckled on a corresponding connecting claw in the connecting frame (1); three No. 2 splicing surfaces are provided on the double-raised splicing block (3); and each No. 2 splicing surface is perpendicularly intersected with the other two No. 2 splicing surfaces; a No. 2 iron wire placement groove (31) is processed on the intersecting edges of every two adjacent No. 2 splicing surfaces, and the three No. 2 iron wire placement grooves (31) are connected; two of the three No. 2 splicing surfaces are respectively fixed with a No. 1 buckling protrusion (32), and the two No. 2 splicing surfaces fixed with the No. 1 buckling protrusion (32) are both outer side surfaces of the mold in the winding mold.

6. The winding die for three-dimensional winding lattice structure according to claim 5, characterized in that: The three-raised splicing block (4) is buckled on a corresponding connecting claw in the connecting frame (1). The three-raised splicing block (4) is provided with three No. 3 splicing surfaces, and each No. 3 splicing surface is arranged to intersect perpendicularly with the other two No. 3 splicing surfaces. A No. 3 wire placement groove (41) is processed on the intersecting edges of every two adjacent No. 3 splicing surfaces, and the three No. 3 wire placement grooves (41) are connected. A No. 2 buckling protrusion (42) is fixed on each of the three No. 3 splicing surfaces.

7. The winding die for three-dimensional winding lattice structure according to claim 6, characterized in that: The interior of the vertex fixing buckle (5) is processed with three No. 4 wire placement grooves (52), and each No. 4 wire placement groove (52) is correspondingly matched with a No. 3 wire placement groove (41). The outer side wall of the vertex fixing buckle (5) is processed with three No. 1 buckle mounting grooves (51), and each No. 1 buckle mounting groove (51) is correspondingly matched with a No. 2 buckle mounting protrusion (42).

8. The winding die for three-dimensional winding lattice structure according to claim 7, characterized in that: Four No. 5 wire placement grooves (61) are equidistantly processed along the circumferential direction on the outer side wall of the face center fixing buckle (6), and each No. 5 wire placement groove (61) is correspondingly matched with a wire channel formed by splicing two adjacent No. 1 wire placement grooves (21).

9. The winding die for three-dimensional winding lattice structure according to claim 8, characterized in that: The rib core fixing buckle (7) is an L-shaped buckle. Two No. 2 buckle mounting grooves (71) are respectively processed on the horizontal part and the vertical part of the L-shaped buckle, and each No. 2 buckle mounting groove (71) is correspondingly matched with a No. 1 buckle mounting protrusion (32). Four No. 6 wire placement grooves (72) are processed inside the L-shaped buckle. Each No. 6 wire placement groove (72) is correspondingly matched with a No. 2 wire placement groove (31). Two of the four No. 6 wire placement grooves (72) are located at the joint of the horizontal part and the vertical part of the L-shaped buckle. The remaining two of the four No. 6 wire placement grooves (72) are respectively located on the horizontal part and the vertical part of the L-shaped buckle, and the four No. 6 wire placement grooves (72) are connected.

10. A winding method using the winding die for three-dimensional winding lattice structure according to any one of claims 1 to 9, characterized in that: The method is achieved by the following steps: Step 1: Assemble the eight winding support units to form a winding mold, and bend several of them 90 degrees to form a winding mold. "-shaped iron wires are arranged in the winding mold to form six main supporting iron wire bundles (8), and the six main supporting iron wire bundles (8) are scattered outward with the center of the winding mold as the center, and ensure that the main supporting iron wire bundles (8) are provided in the six directions of the winding mold: upper, lower, front, rear, left and right; Step 2: Calculate the number of winding turns, use a twisting tool to wind and shape the six main support wire bundles (8) extending from the center outward fixed in the winding mold in step 1, and fix the breakpoints in the main support wire bundles (8) after shaping by tying; Step 3: Bend several of the wires in step 1 90 degrees to form The ""-shaped iron wires are scattered to the extension portion on the outer surface of the winding mold to form a plurality of faceted iron wire bundles (9), and the plurality of faceted iron wire bundles (9) distributed on the outer surface of the winding mold are fixed by a plurality of vertex fixing buckles (5), a plurality of face center fixing buckles (6) and a plurality of face center fixing buckles (7); Step 4: Calculate the number of winding turns, use a screwing tool to wind and shape the multiple faceted iron wire bundles (9) fixed on the outer surface of the winding mold in step 3, and use the multiple shaped faceted iron wire bundles (9) and the six main support iron wire bundles (8) shaped in step 2 to form the final lattice structure; Step 5: After the final lattice structure in step 4 is wound, the multiple vertex fixing buckles (5), the multiple face center fixing buckles (6) and the multiple edge center fixing buckles (7) are removed from the winding mold and recycled for standby use, and the winding support unit is destroyed with a blunt instrument. After the winding support unit is destroyed, the lattice structure obtained in step 4 is taken out to complete the demoulding work.

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