CN113263723B - Variable-radius multi-printing-head integrated truss 3D printer and using method thereof - Google Patents
Variable-radius multi-printing-head integrated truss 3D printer and using method thereof Download PDFInfo
- Publication number
- CN113263723B CN113263723B CN202110482681.XA CN202110482681A CN113263723B CN 113263723 B CN113263723 B CN 113263723B CN 202110482681 A CN202110482681 A CN 202110482681A CN 113263723 B CN113263723 B CN 113263723B
- Authority
- CN
- China
- Prior art keywords
- module
- surrounding
- truss
- adjusting module
- period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The variable-radius multi-printing-head integrated truss 3D printer comprises a rack, an edge forming module, a surrounding forming module and an angle adjusting module, wherein the surrounding forming module and the angle adjusting module are connected to the rack, and the surrounding forming module, the angle adjusting module and the edge forming module are connected; the surrounding forming module consists of a first forward period surrounding sub-module, a second forward period surrounding sub-module and a reverse period surrounding sub-module from bottom to top; the angle adjusting module consists of an upper adjusting module and a lower adjusting module which are arranged on the rack, the upper adjusting module and the lower adjusting module are respectively provided with three groups and are distributed in an equidistant array along the central axis of the rack, and the lower adjusting module and the corresponding upper adjusting module are positioned in the same vertical plane; the edge forming modules are divided into three groups and are distributed in an equidistant array along the central axis of the rack; the invention realizes the integrated rapid forming and manufacturing of the high-performance composite material truss with the variable cross-section size, and has the advantages of sufficient length of the truss, high bearing performance and capability of being born and lifted by a spacecraft.
Description
Technical Field
The invention belongs to the technical field of additive manufacturing, and particularly relates to a variable-radius multi-printing-head integrated truss 3D printer and a using method thereof.
Background
High performance composite trusses are generally made of continuous fiber reinforced thermoplastic composites, generally presenting a triangular prism space structure with triangular units formed by the connection of individual rods on the truss, the joints between the rods being called nodes, the nodes being naturally connected by the thermoplastic matrix material in the composite. The high-performance composite material truss not only has excellent mechanical properties of advanced composite materials, such as high specific strength and specific modulus, but also has outstanding bending rigidity efficiency, can play an important role in weight reduction design in the field of aerospace, and can be used as a supporting structural member for building large-scale spacecraft components such as high-power solar panels, high-gain satellite antennas and the like.
At present, the technical means for manufacturing the high-performance composite material truss mainly depends on universal high-end composite material automatic laying equipment, such as a multi-shaft tape laying machine, a wire laying machine and the like, and the equipment mainly comprises a laying head, a mold and a multi-shaft mechanical arm in structure, so that flexible relative motion between the laying head and the mold can be formed, and the equipment can be used for forming structural parts with complex shapes. In the forming process, a mould is used as a support for laying the composite material, the laying head is controlled to move on the surface of the mould according to the structural shape of the truss and outputs the material, and the material is accurately positioned on the surface of the mould and is shaped. However, the technical means for forming the high-performance composite material has the following disadvantages:
1) the mold has a size limit, particularly the length of the high-performance composite material truss is limited, the high-performance composite material truss required for building large-scale spacecraft components in space in the future has huge volume, and the length of a single truss can reach hundreds of meters, so that the prior art cannot meet the requirement of integral forming, and if the truss is connected in a segmented manner, the mechanical property of the truss is reduced; 2) the die has shape limitation, the laying equipment is difficult to form truss structural parts with more different edge inclined included angles, and trusses with variable cross-section sizes with various inclined included angles are required to be used in space construction so as to fully utilize limited materials to realize better bearing performance; 3) the laying equipment is heavy and cannot be lifted off by the load of the spacecraft, and the truss has the structural characteristic of dispersed shape, so that the space carrying space utilization rate is low, and the contradiction is formed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a variable-radius multi-print-head integrated truss 3D printer and a using method thereof, which realize integrated rapid forming and manufacturing of a high-performance composite truss with variable cross-section size and have the advantages of sufficient truss length, high bearing performance and capability of being borne and lifted by a spacecraft.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multi-printing-head integrated truss 3D printer with variable radius comprises a rack 4, an edge forming module 1, a surrounding forming module and an angle adjusting module, wherein the surrounding forming module and the angle adjusting module are connected to the rack 4, and the surrounding forming module, the angle adjusting module and the edge forming module 1 are connected;
the surrounding forming module consists of three groups of sub-modules with the same mechanical structure, and comprises a first forward period surrounding sub-module 21, a second forward period surrounding sub-module 22 and a reverse period surrounding sub-module 23 from bottom to top;
the angle adjusting module consists of an upper adjusting module 31 and a lower adjusting module 32, the upper adjusting module 31 is fixedly arranged at the upper part of the frame 4, the lower adjusting module 32 is fixedly arranged at the lower part of the frame 4, the upper adjusting module 31 and the lower adjusting module 32 have three groups, and are distributed in an equidistant array along the central axis of the frame 4, and the lower adjusting module 32 and the corresponding upper adjusting module 31 are positioned in the same vertical plane;
the edge forming modules 1 have three groups and are distributed in an equidistant array along the central axis of the frame 4.
The upper adjusting module 31 comprises a cantilever support 311 connected with the first telescopic module 5-1, and the cantilever support 311 is hinged with the upper part of the edge forming module 1; the lower adjustment module 32 comprises a hinged base 321 connected to the second telescopic module 5-2, the hinged base 321 being hinged to one end of an electric push-pull rod 322, the other end of the electric push-pull rod 322 being hinged to the lower part of the edge forming module 1.
The first telescopic module 5-1 and the second telescopic module 5-2 both comprise a stepping motor 51, the stepping motor 51 is fixedly installed on a base 52, two same polished rods 54 are installed on the base 52 in parallel, the polished rods 54 are parallel to a screw rod 55, one end of the screw rod 55 is connected with a rotating shaft of the stepping motor 51 through a coupler, the other end of the screw rod 55 is connected with the base 52 through a bearing, sliding blocks 53 are movably installed on the polished rods 54 and the screw rod 55, the stepping motor 51 drives the sliding blocks 53 through the screw rod 55 to realize unidirectional reciprocating translation, the sliding blocks 53 are connected with cantilever supports 311 of the upper adjusting module 31, or the sliding blocks 53 are connected with hinged bases 321 of the lower adjusting module 32.
The edge forming module 1 comprises a support 11, a heating mould 12, a first driving wheel pair 14-1, a driven wheel set 15 and a second driving wheel pair 14-2 are sequentially connected to the support 11, a belt laying 171 is led out from a belt laying disc 17 and sequentially penetrates through the heating mould 12, the first driving wheel pair 14-1, the driven wheel set 15 and the second driving wheel pair 14-2; the heating mold 12 is fixedly installed on the heat insulation support 13, the heat insulation support 13 is fixedly installed on the support 11, and the heating mold 12 is used for bending and deforming the flat paving belt 171; the first driving wheel pair 14-1 and the second driving wheel pair 14-2 provide dragging power through a first stepping motor 16-1 and a second stepping motor 16-2, and the first stepping motor 16-1 and the second stepping motor 16-2 are arranged on the bracket 11; the driven wheel set 15 is used to support the belt 171.
The first driving wheel pair 14-1 and the second driving wheel pair 14-2 respectively comprise a cam 141 and a concave wheel 142, the cam 141 is connected with output shafts of the first stepping motor 16-1 and the second stepping motor 16-2, and the cam 141 and the concave wheel 142 are large in surface friction coefficient and adjustable in distance.
The first forward-period surrounding submodule 21, the second forward-period surrounding submodule 22 and the reverse-period surrounding submodule 23 all comprise a printing head 201, a printing head support 202, a wire disc 203, an annular guide rail sliding block 204, an annular guide rail 205 and a third telescopic module 5, wherein the printing head 201 and the wire disc 203 are fixedly arranged on the printing head support 202, the printing head support 202 is fixedly arranged on a sliding block 53 of the third telescopic module 5, the third telescopic module 5 is fixedly arranged on the annular guide rail sliding block 204, the annular guide rail sliding block 204 is connected with the annular guide rail 205 in a matching manner, and the annular guide rail 205 is fixedly arranged on the rack 4; the composite prepreg filaments 2031 are drawn from the filament spool 203, passed through the print head 201, and extruded.
The third telescopic module 5 has the same structure as the first telescopic module 5-1 and the second telescopic module 5-2.
The first forward-periodic surrounding submodule 21, the second forward-periodic surrounding submodule 22 and the reverse-periodic surrounding submodule 23 respectively surround the central axis of the rack 4.
The multi-printing-head integrated truss 3D printer with the variable radius is used for forming triangular prism trusses with parallel edges or forming triangular prism-like trusses with intersecting edges and extending lines.
The use method of the variable-radius multi-printing-head integrated truss 3D printer comprises the following steps:
1) moving each slide block 53 in the three sets of upper and lower adjusting modules 31 and 32 to a position away from the stepping motor 51, and extending the three electric push-pull rods 322 to a position where the three sets of edge forming modules 1 are exactly vertical;
2) after the heating mold 12 is heated to a specified temperature, the composite material tape 171 sequentially passes through the heating mold 12, the first driving wheel pair 14-1 and the second driving wheel pair 14-2 through manual assistance, the first driving wheel pair 14-1 and the second driving wheel pair 14-2 are ensured to clamp and drag the tape 171, and the tape 171 is kept in straightness;
3) the first forward-period surrounding submodule 21, the second forward-period surrounding submodule 22 and the reverse-period surrounding submodule 23 are adjusted to be in the same vertical plane, each printing head points to the paving belt 171 of the edge forming module, and each printing head retracts to a position close to the stepping motor 51;
4) after the temperature of the heating block inside the print head 201 rises to a specified temperature, manually assisting to pass the composite prepreg filament 2031 through the print head 201;
5) according to the design requirement of the truss structure, the pull-back stroke of the electric push-pull rod 322 is adjusted, namely the inclination angle of the edge is adjusted; adjusting the retraction stroke of the slider 53 in the upper adjustment module 31 and the lower adjustment module 32, i.e., adjusting the initial cross-sectional size of the triangular prism or the triangular prism-like truss;
6) moving the sliding blocks 53 of the first forward-period surrounding submodule 21, the second forward-period surrounding submodule 22 and the reverse-period surrounding submodule 23 to enable each printing head to be close to each edge and respectively adjust the distance to the corresponding distance;
7) at the beginning of the forming process, a truss is formed from bottom to top, the stepping motors 16 of the three groups of edge forming modules 1 drive the driving wheel pair 14 to draw the tape 171 at a constant speed, meanwhile, the first forward period surrounding sub-module 21 and the second forward period surrounding sub-module 22 surround along the annular guide rail 205 at the same speed and in the forward period, the reverse period surrounding sub-module 23 surrounds along the annular guide rail 205 in the reverse period, and when in surrounding, each printing head extrudes wires and winds the wires on the three edge tapes 171 to form a reliable node;
8) after the truss is formed, the three groups of edge forming modules 1, the upper adjusting module 31 and the lower adjusting module 32 are static, the first forward-period surrounding sub-module 21, the second forward-period surrounding sub-module 22 and the reverse-period surrounding sub-module 23 are static, and the formed truss is cut off from the upper part and taken out.
The invention has the beneficial effects that:
by adopting the invention, the integrated rapid forming of the high-performance composite material truss can be realized, the length of the manufactured truss is sufficient and can be equivalent to the length of a usable paving belt theoretically, the defect of a joint caused by adopting a multi-section splicing method for a shorter truss can be avoided, and the continuous composite material wire material is encircled to form the beam of the truss which is continuous as well, so that the defect of the truss node is reduced, and the strength of the truss is improved; the cross section size of the manufactured truss can be gradually changed, and the bending deformation of the truss which is commonly used as a supporting structural member can be reduced under the condition that the total mass is unchanged; in addition, the invention has the characteristics of being highly suitable for space manufacturing, and has great significance for reducing the cost, breaking through the transportation limit and the manufacturing limit in the aerospace field.
Drawings
FIG. 1 is a schematic diagram of a 3D printer of the present invention with one third of the frame removed.
Fig. 2 is a schematic structural diagram of the expansion module of the present invention.
FIG. 3 is a schematic diagram of the edge forming module of the present invention.
FIG. 4 is a schematic structural view of a wrap-around forming module of the present invention.
Figure 5 is a schematic view of a shaped triangular prism truss according to the present invention.
Figure 6 is a schematic view of a shaped triangular prism-like truss of the invention having a tapered cross-section.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Referring to fig. 1, the variable-radius multi-printing-head integrated truss 3D printer comprises a frame 4, an edge forming module 1, a surrounding forming module and an angle adjusting module, wherein the surrounding forming module and the angle adjusting module are connected to the frame 4, and the surrounding forming module, the angle adjusting module and the edge forming module 1 are connected;
the surrounding forming module consists of three groups of sub-modules with the same mechanical structure, and comprises a first forward period surrounding sub-module 21, a second forward period surrounding sub-module 22 and a reverse period surrounding sub-module 23 from bottom to top;
the angle adjusting module consists of an upper adjusting module 31 and a lower adjusting module 32, the upper adjusting module 31 is fixedly arranged at the upper part of the frame 4, the lower adjusting module 32 is fixedly arranged at the lower part of the frame 4, the upper adjusting module 31 and the lower adjusting module 32 have three groups, and are distributed in an equidistant array along the central axis of the frame 4, and the lower adjusting module 32 and the corresponding upper adjusting module 31 are positioned in the same vertical plane;
the edge forming modules 1 have three groups and are distributed in an equidistant array along the central axis of the frame 4.
Referring to fig. 1 and 2, the upper adjustment module 31 includes a cantilever 311 connected to the first telescopic module 5-1, the cantilever 311 being hinged to the upper part of the edge forming module 1; the lower adjustment module 32 comprises a hinged base 321 connected to the second telescopic module 5-2, the hinged base 321 being hinged to one end of an electric push-pull rod 322, the other end of the electric push-pull rod 322 being hinged to the lower part of the edge forming module 1.
Referring to fig. 2, the first and second expansion modules 5-1 and 5-2 each include a stepping motor 51, the stepping motor 51 is fixedly mounted on a base 52, two identical polish rods 54 are mounted on the base 52 in parallel, the polish rods 54 are parallel to a lead screw 55, one end of the lead screw 55 is connected to a rotating shaft of the stepping motor 51 through a coupling, the other end of the lead screw is connected to the base 52 through a bearing, sliders 53 are movably mounted on the polish rods 54 and the lead screw 55, the stepping motor 51 drives the sliders 53 through the lead screw 55 to realize unidirectional reciprocating translation, the sliders 53 are connected to a cantilever bracket 311 of the upper adjustment module 31, or the sliders 53 are connected to a hinged base 321 of the lower adjustment module 32.
Referring to fig. 3, the edge forming module 1 includes a bracket 11, the bracket 11 is sequentially connected with a heating mold 12, a first driving wheel pair 14-1, a driven wheel set 15, and a second driving wheel pair 14-2, and a tape 171 is led out from a tape laying disc 17 and sequentially passes through the heating mold 12, the first driving wheel pair 14-1, the driven wheel set 15, and the second driving wheel pair 14-2; the heating mold 12 is fixedly arranged on the heat insulation support 13, the heat insulation support 13 is fixedly arranged on the support 11, the heating mold 12 is used for bending and deforming the straight tape 171, and the cross section of the bent tape 171 is approximately at an angle of 60 degrees; the first driving wheel pair 14-1 and the second driving wheel pair 14-2 provide dragging power through a first stepping motor 16-1 and a second stepping motor 16-2, and the first stepping motor 16-1 and the second stepping motor 16-2 are arranged on the bracket 11; the passive set of wheels 15 have a low coefficient of friction on their surface for supporting the belt 171.
The first driving wheel pair 14-1 and the second driving wheel pair 14-2 respectively comprise a cam 141 and a concave wheel 142, the cam 141 is connected with output shafts of the first stepping motor 16-1 and the second stepping motor 16-2, and the cam 141 and the concave wheel 142 are large in surface friction coefficient and adjustable in distance, so that the belt 171 can be clamped and dragged conveniently.
Referring to fig. 2 and 4, each of the first forward-periodic surrounding submodule 21, the second forward-periodic surrounding submodule 22 and the reverse-periodic surrounding submodule 23 includes a print head 201, a print head support 202, a wire disc 203, an annular guide rail slider 204, an annular guide rail 205 and a third telescopic module 5, the print head 201 and the wire disc 203 are fixedly mounted on the print head support 202, the print head support 202 is fixedly mounted on a slider 53 of the third telescopic module 5, the third telescopic module 5 is fixedly mounted on the annular guide rail slider 204, the annular guide rail slider 204 is in fit connection with the annular guide rail 205, and the annular guide rail 205 is fixedly mounted on the frame 4; the composite prepreg filaments 2031 are drawn from the filament spool 203, passed through the print head 201, and extruded.
The third telescopic module 5 has the same structure as the first telescopic module 5-1 and the second telescopic module 5-2.
Referring to fig. 1 and 4, the first forward-periodic surrounding submodule 21, the second forward-periodic surrounding submodule 22 and the reverse-periodic surrounding submodule 23 are located on an axial line of the rack 4, are equally spaced, and can respectively surround around the axial line of the rack 4.
Referring to fig. 5 and 6, the variable radius multi-printhead integrated truss 3D printer is used for forming triangular prism trusses with parallel edges or triangular prism-like trusses with extended edges having a tendency to intersect, but is not limited to the shape shown in the embodiment.
The printing head 201 comprises a heating block, a wire feeding motor, a nozzle and other parts, and the printing head 201 can integrate a laser, a hot air gun and other devices to obtain a firmer node.
The use method of the variable-radius multi-printing-head integrated truss 3D printer comprises the following steps:
1) with reference to fig. 1, 2, 3 and 4, each slide 53 in the three sets of upper and lower conditioning modules 31, 32 is moved to a position away from the stepper motor 51 and three motorized push-pull rods 322 are extended to a position where they are exactly the right way up to the three sets of edge forming modules 1;
2) after the heating mold 12 is heated to a specified temperature, the composite material tape 171 sequentially passes through the heating mold 12, the first driving wheel pair 14-1 and the second driving wheel pair 14-2 through manual assistance, the first driving wheel pair 14-1 and the second driving wheel pair 14-2 are ensured to clamp and drag the tape 171, the tape 171 keeps good straightness, and when the three groups of edge forming modules 1 finish preparation work, the next step is carried out;
3) the first forward-period surrounding submodule 21, the second forward-period surrounding submodule 22 and the reverse-period surrounding submodule 23 are adjusted to be in the same vertical plane, each printing head points to the paving belt 171 of the edge forming module 1, and each printing head retracts to a position close to the stepping motor 51;
4) after the temperature of the heating block inside the print head 201 rises to a specified temperature, manually assisting to pass the composite prepreg filament 2031 through the print head 201;
5) according to the design requirement of the truss structure, the inclination angle of the edge can be adjusted by adjusting the pull-back stroke of the electric push-pull rod 322; the initial cross section size of the triangular prism or the triangular prism-like truss can be adjusted by adjusting the retraction stroke of the slide block 53 in the upper adjusting module 31 and the lower adjusting module 32;
6) after the adjustment of the edges is finished, moving the sliding blocks 53 of the first forward period surrounding submodule 21, the second forward period surrounding submodule 22 and the reverse period surrounding submodule 23 to enable the printing heads to be close to the edges and respectively adjust to corresponding intervals, the nodes are not firm due to overlarge intervals, and extruded wires are cut off by edge laying due to overlarge intervals;
7) after the preparation work is finished, the forming process is started, a truss is formed from bottom to top, the stepping motors 16 of the three groups of edge forming modules 1 drive the driving wheel pair 14 to draw the tape 171 at a constant speed, meanwhile, the first forward period surrounding sub-module 21 and the second forward period surrounding sub-module 22 surround along the annular guide rail 205 at the same speed in the forward period, the reverse period surrounding sub-module 23 surrounds along the annular guide rail 205 in the reverse period, the surrounding speed is twice of the surrounding speed in the forward period, and when the winding is carried out, the printing heads extrude wires to be wound on the three edge tapes 171 to form reliable nodes;
8) after the truss is formed, the three groups of edge forming modules 1, the upper adjusting module 31 and the lower adjusting module 32 are static, the first forward-period surrounding sub-module 21, the second forward-period surrounding sub-module 22 and the reverse-period surrounding sub-module 23 are static, and the formed truss is cut off from the upper part and taken out through manual assistance or additional device assistance.
It should be understood that the above description of the preferred embodiments is given for clarity and not for any purpose of limitation, and that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a but variable radius's beat printer head integral type truss 3D printer that beats more which characterized in that: the device comprises a rack (4), an edge forming module (1), a surrounding forming module and an angle adjusting module, wherein the surrounding forming module and the angle adjusting module are connected to the rack (4), and the surrounding forming module, the angle adjusting module and the edge forming module (1) are connected;
the surrounding forming module consists of three groups of sub-modules with the same mechanical structure, and is respectively a first forward-period surrounding sub-module (21), a second forward-period surrounding sub-module (22) and a reverse-period surrounding sub-module (23) from bottom to top;
the angle adjusting module consists of an upper adjusting module (31) and a lower adjusting module (32), the upper adjusting module (31) is fixedly arranged at the upper part of the rack (4), the lower adjusting module (32) is fixedly arranged at the lower part of the rack (4), the upper adjusting module (31) and the lower adjusting module (32) are divided into three groups, the three groups are distributed in an equidistant array along the central axis of the rack (4), and the lower adjusting module (32) and the corresponding upper adjusting module (31) are positioned in the same vertical plane;
the edge forming modules (1) have three groups and are distributed in an equidistant array along the central axis of the rack (4);
the upper adjusting module (31) comprises a cantilever support (311) connected with the first telescopic module (5-1), and the cantilever support (311) is hinged with the upper part of the edge forming module (1); the lower adjusting module (32) comprises a hinged base (321) connected with the second telescopic module (5-2), the hinged base (321) is hinged with one end of an electric push-pull rod (322), and the other end of the electric push-pull rod (322) is hinged with the lower part of the edge forming module (1).
2. The variable radius multi-printhead integrated truss 3D printer of claim 1, wherein: the first telescopic module (5-1) and the second telescopic module (5-2) comprise stepping motors (51), the stepping motors (51) are fixedly installed on a base (52), two same polished rods (54) are installed on the base (52) in parallel, the polished rods (54) are parallel to screw rods (55), one ends of the screw rods (55) are connected with rotating shafts of the stepping motors (51) through couplers, the other ends of the screw rods are connected with the base (52) through bearings, sliding blocks (53) are movably installed on the polished rods (54) and the screw rods (55), the stepping motors (51) drive the sliding blocks (53) through the screw rods (55) to realize unidirectional reciprocating translation, the sliding blocks (53) are connected with cantilever supports (311) of an upper adjusting module (31), or the sliding blocks (53) are connected with hinged bases (321) of a lower adjusting module (32).
3. The variable radius multi-printhead integrated truss 3D printer of claim 1, wherein: the edge forming module (1) comprises a support (11), a heating mould (12), a first driving wheel pair (14-1), a driven wheel set (15) and a second driving wheel pair (14-2) are sequentially connected onto the support (11), a tape laying plate (17) is led out of a tape laying plate (171), and the tape laying plate sequentially penetrates through the heating mould (12), the first driving wheel pair (14-1), the driven wheel set (15) and the second driving wheel pair (14-2); the heating mould (12) is fixedly arranged on the heat insulation support (13), the heat insulation support (13) is fixedly arranged on the support (11), and the heating mould (12) is used for bending and deforming the flat paving belt (171); the first driving wheel pair (14-1) and the second driving wheel pair (14-2) provide dragging power through a first stepping motor (16-1) and a second stepping motor (16-2), and the first stepping motor (16-1) and the second stepping motor (16-2) are installed on the support (11); the driven wheel set (15) is used for supporting the belt (171).
4. The variable radius multi-printhead integral truss 3D printer of claim 3, wherein: the first driving wheel pair (14-1) and the second driving wheel pair (14-2) respectively comprise a cam (141) and a concave wheel (142), the cam (141) is connected with output shafts of the first stepping motor (16-1) and the second stepping motor (16-2), and the cam (141) and the concave wheel (142) are large in surface friction coefficient and adjustable in distance.
5. The variable radius multi-printhead integral truss 3D printer of claim 2, wherein: the first forward-period surrounding submodule (21), the second forward-period surrounding submodule (22) and the reverse-period surrounding submodule (23) comprise a printing head (201), a printing head support (202), a wire disc (203), an annular guide rail sliding block (204), an annular guide rail (205) and a third telescopic module (5), the printing head (201) and the wire disc (203) are fixedly arranged on the printing head support (202), the printing head support (202) is fixedly arranged on a sliding block (53) of the third telescopic module (5), the third telescopic module (5) is fixedly arranged on the annular guide rail sliding block (204), the annular guide rail sliding block (204) is connected with the annular guide rail (205) in a matched mode, and the annular guide rail (205) is fixedly arranged on the rack (4); the composite prepreg filaments (2031) are drawn from the filament spool (203), passed through the print head (201), and extruded.
6. The variable radius multi-printhead integral truss 3D printer of claim 5, wherein: the third telescopic module (5) has the same structure as the first telescopic module (5-1) and the second telescopic module (5-2).
7. The variable radius multi-printhead integrated truss 3D printer of claim 1, wherein: the first forward-periodic surrounding sub-module (21), the second forward-periodic surrounding sub-module (22) and the reverse-periodic surrounding sub-module (23) surround the central axis of the rack (4) respectively.
8. The variable radius multi-printhead integrated truss 3D printer of claim 1, wherein: the multi-printing-head integrated truss 3D printer with the variable radius is used for forming triangular prism trusses with parallel edges or forming triangular prism-like trusses with intersecting edges and extending lines.
9. The application method of the multi-printing-head integrated truss 3D printer with the variable radius is characterized by comprising the following steps of:
1) moving each sliding block (53) in the three groups of upper adjusting modules (31) and lower adjusting modules (32) to a position far away from the stepping motor (51), and extending the three electric push-pull rods (322) to a position which can just enable the three groups of edge forming modules (1) to be vertical;
2) after the heating mould (12) is heated to a specified temperature, the composite material tape (171) sequentially passes through the heating mould (12), the first driving wheel pair (14-1) and the second driving wheel pair (14-2) in a manual assistance mode, the first driving wheel pair (14-1) and the second driving wheel pair (14-2) are ensured to clamp and drag the tape (171), and the tape (171) keeps straightness;
3) adjusting a first forward period surrounding sub-module (21), a second forward period surrounding sub-module (22) and a reverse period surrounding sub-module (23) to be in the same vertical plane, wherein each printing head points to a tape laying (171) of the edge forming module and retracts to a position close to the stepping motor (51);
4) after the temperature of a heating block inside the printing head (201) rises to a specified temperature, manually assisting to pass the composite material prepreg silk (2031) through the printing head (201);
5) according to the design requirement of the truss structure, the pull-back stroke of the electric push-pull rod (322) is adjusted, namely the inclination angle of the edge is adjusted; adjusting the retraction stroke of a slide block (53) in the upper adjusting module (31) and the lower adjusting module (32), namely adjusting the initial cross section size of the triangular prism or the triangular prism-like truss;
6) moving the sliding blocks (53) of the first forward-period surrounding submodule (21), the second forward-period surrounding submodule (22) and the reverse-period surrounding submodule (23) to enable each printing head to be close to each edge and respectively adjust the printing heads to the corresponding spacing;
7) the forming process starts, a truss is formed from bottom to top, the stepping motors (16) of the three groups of edge forming modules (1) drive the driving wheel pair (14) to pull the tape laying (171) at a constant speed, meanwhile, the first forward period surrounds the sub-module (21) and the second forward period surrounds the sub-module (22) along the annular guide rail (205) at the same speed and in the forward period, the reverse period surrounds the sub-module (23) along the annular guide rail (205) in the reverse period, and when in surrounding, the printing heads extrude wires which are wound on the three edge tape laying (171) to form reliable nodes;
8) after the truss is formed, the three groups of edge forming modules (1), the upper adjusting module (31) and the lower adjusting module (32) are static, the first forward period surrounding sub-module (21), the second forward period surrounding sub-module (22) and the reverse period surrounding sub-module (23) are static, and the formed truss is cut off from the upper part and taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110482681.XA CN113263723B (en) | 2021-04-30 | 2021-04-30 | Variable-radius multi-printing-head integrated truss 3D printer and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110482681.XA CN113263723B (en) | 2021-04-30 | 2021-04-30 | Variable-radius multi-printing-head integrated truss 3D printer and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113263723A CN113263723A (en) | 2021-08-17 |
| CN113263723B true CN113263723B (en) | 2022-04-05 |
Family
ID=77229832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110482681.XA Active CN113263723B (en) | 2021-04-30 | 2021-04-30 | Variable-radius multi-printing-head integrated truss 3D printer and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113263723B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115742295B (en) * | 2022-10-28 | 2024-03-22 | 南京航空航天大学 | Truss additive manufacturing device for aerospace |
| US11911961B1 (en) * | 2022-10-28 | 2024-02-27 | Nanjing University Of Aeronautics And Astronautics | Additive manufacturing device for aerospace truss |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10156982A (en) * | 1996-10-02 | 1998-06-16 | Ube Nitto Kasei Co Ltd | Fiber-reinforced composite molding and its manufacture |
| CN105377069A (en) * | 2013-06-26 | 2016-03-02 | Hrl实验室有限责任公司 | High airflow micro-truss structural apparatus |
| CN107878725A (en) * | 2016-09-30 | 2018-04-06 | 波音公司 | The system and method for the sandwich plate strengthened for manufacturing pin and obtained harden structure |
| CN108160373A (en) * | 2017-12-26 | 2018-06-15 | 清华大学 | The in-orbit increasing material manufacturing device of rod piece |
| CN207630512U (en) * | 2017-12-19 | 2018-07-20 | 江苏信息职业技术学院 | A kind of change dimension D elta type 3D printers |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04247149A (en) * | 1991-02-01 | 1992-09-03 | Nhk Spring Co Ltd | Manufacture of hollow frp member |
| US20060032705A1 (en) * | 2004-08-16 | 2006-02-16 | Isham William R | Lightweight composite ladder rail having supplemental reinforcement in regions subject to greater structural stress |
| US7562499B2 (en) * | 2006-01-13 | 2009-07-21 | HC Bridge Company, LLC | Hybrid composite beam system |
| US10398921B1 (en) * | 2012-01-11 | 2019-09-03 | Alliance Design And Development Group, Inc. | Methods of adjusting stiffness and flexibility in devices, apparatus and equipment |
| US10213965B2 (en) * | 2013-11-25 | 2019-02-26 | Tethers Unlimited Inc | Architecture, methods, and apparatus for additive manufacturing and assembly of sparse structures, multifunctional structures, and components for space and terrestrial systems |
| US10259137B2 (en) * | 2014-02-21 | 2019-04-16 | Noah Israel | Spray printing construction |
| WO2016061217A1 (en) * | 2014-10-15 | 2016-04-21 | Marywood University | Architectural structures having an expandable frame |
| CN105500702B (en) * | 2015-11-16 | 2017-12-29 | 上海建工集团股份有限公司 | A kind of 3D printing device and method with two-stage track-frame structure |
| CN109848410B (en) * | 2019-03-12 | 2023-08-29 | 华中科技大学 | Additive manufacturing device and method for high-freedom complex structural part |
| CN110154390B (en) * | 2019-05-05 | 2021-06-15 | 西安理工大学 | Variable-size full-automatic 3D printing system based on cylindrical coordinate system |
| CN110315079B (en) * | 2019-07-31 | 2024-03-26 | 西安增材制造国家研究院有限公司 | Additive manufacturing device and forming method |
-
2021
- 2021-04-30 CN CN202110482681.XA patent/CN113263723B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10156982A (en) * | 1996-10-02 | 1998-06-16 | Ube Nitto Kasei Co Ltd | Fiber-reinforced composite molding and its manufacture |
| CN105377069A (en) * | 2013-06-26 | 2016-03-02 | Hrl实验室有限责任公司 | High airflow micro-truss structural apparatus |
| CN107878725A (en) * | 2016-09-30 | 2018-04-06 | 波音公司 | The system and method for the sandwich plate strengthened for manufacturing pin and obtained harden structure |
| CN207630512U (en) * | 2017-12-19 | 2018-07-20 | 江苏信息职业技术学院 | A kind of change dimension D elta type 3D printers |
| CN108160373A (en) * | 2017-12-26 | 2018-06-15 | 清华大学 | The in-orbit increasing material manufacturing device of rod piece |
Non-Patent Citations (4)
| Title |
|---|
| Generation of truss-structure objects with implicit representation for 3D-printing;Zhao, BT;《INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING》;TAYLOR & FRANCIS LTD;20171231;第30卷(第8期);871-879 * |
| Skeleton arc additive manufacturing with closed loop control;Radel,S;《ADDITIVE MANUFACTURING》;ELSEVIER;20190331;第26卷;106-116 * |
| 增材制造——面向航空航天制造的变革性技术;李涤尘;《航空学报》;中国航空学会;20210429;1-18 * |
| 空间大型桁架在轨增材制造技术的研究现状与展望;杨杰;《材料导报》;重庆西南信息有限公司;20210228;第35卷(第3期);03159-03167 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113263723A (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113263723B (en) | Variable-radius multi-printing-head integrated truss 3D printer and using method thereof | |
| JP2016221949A (en) | Apparatus and method for automated layup of composite structures | |
| CN105690801A (en) | Universal laying device for automatic tow placement of carbon fiber composite | |
| CN112140529A (en) | Material increase manufacturing device for composite material with revolution curved surface structure | |
| CN212669978U (en) | Prefabricated part processing equipment | |
| CN114013068A (en) | Annular wire laying machine tool and wire laying method thereof | |
| CN115320093B (en) | Efficient 3D printing device and method for composite material sparse structure | |
| CN104924627A (en) | Winding machine used for thermoplastic prepreg tape reinforced pipe production and use method thereof | |
| CN208930769U (en) | A kind of wind turbine blade root preformed member is laid with production line automatically | |
| CN207150374U (en) | High-speed winding forming frock and coil molding system | |
| CN212717767U (en) | Carbon fiber girder cloth spreading trolley | |
| CN220242385U (en) | Four-axial fiber winding die | |
| CN211318048U (en) | Carbon fiber composite core rod winding test device | |
| CN210759337U (en) | Belt type winding equipment | |
| WO2024109621A1 (en) | Pultrusion device, pultrudate production method, torsion plate, and wind turbine blade | |
| CN220784936U (en) | Glass fiber nylon Long Yujin tape pipe production winding equipment | |
| CN215152018U (en) | Continuous fiber winding device | |
| CN220665611U (en) | Bonding equipment for producing glass fiber filter material with good thermal stability | |
| CN214166943U (en) | Winding device for wire and cable extrusion molding machine | |
| CN215750878U (en) | Clamping device for fiber preforming | |
| CN116852709A (en) | FDM-based continuous fiber reinforced composite rapid forming equipment and method | |
| CN116922817A (en) | Carbon fiber collaborative yarn laying equipment based on parallel attitude adjusting unit and linear yarn feeding unit | |
| CN115742295A (en) | Aerospace truss additive manufacturing device | |
| CN213533884U (en) | Equipment for manufacturing glass fiber reinforced plastic pipeline by heating internal curing | |
| CN212889032U (en) | Monofilament overstock self-winding pultrusion glass fiber reinforced plastic cable pipe production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |