CN110053252B - Surface exposure rapid forming device and method for composite material part - Google Patents
Surface exposure rapid forming device and method for composite material part Download PDFInfo
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- CN110053252B CN110053252B CN201811561430.5A CN201811561430A CN110053252B CN 110053252 B CN110053252 B CN 110053252B CN 201811561430 A CN201811561430 A CN 201811561430A CN 110053252 B CN110053252 B CN 110053252B
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- 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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
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- 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
- B29C64/245—Platforms or substrates
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
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- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/379—Handling of additively manufactured objects, e.g. using robots
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
-
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
Abstract
The invention discloses a surface exposure rapid forming device and method for a composite material part, which comprises the following steps: lifting workbench, left side layering, pattern generator, right side layering, carbon fiber woven mesh, reel, disc milling cutter, resin tank, control system, computer and the like. In the use process of the forming device, the left side pressing strip and the right side pressing strip press the carbon fiber woven mesh on the lifting workbench; the disc-shaped milling cutter cuts and compresses the carbon fiber woven mesh, the carbon fiber woven mesh is immersed into photosensitive resin, the pattern generator projects an optical digital view onto the surface of the liquid photosensitive resin, and the liquid photosensitive resin is selectively exposed and cured; the lifting workbench is lifted to a position where the upper surface of the solidified layer is lower than the feeding position by one layered thickness; repeating the steps to obtain a blank of the composite material part; the invention provides a new way for rapidly manufacturing the complex three-dimensional composite material part, has high molding efficiency and simple process, can shorten the manufacturing period and reduce the manufacturing cost.
Description
Technical Field
The invention relates to the technical field of surface exposure rapid forming devices and methods, in particular to a surface exposure rapid forming device and method for a composite material part.
Background
The surface exposure rapid prototyping technology utilizes the mask to carry out exposure solidification on the whole layer surface of the cross-sectional view of the part, and has the advantages of short whole-layer exposure time, high prototyping speed, high prototyping efficiency, capability of using a non-laser light source, low system cost and the like, thereby being rapidly developed. The patent 'surface exposure forming device and forming method based on the digitized manufacturing of photosensitive resin' (ZL201410105054.4) provides a forming device capable of manufacturing the same part by using different resins based on the surface exposure rapid forming technology, has the advantages of low cost, high precision, high forming efficiency and simple process, and can manufacture parts made of various different materials.
Compared with the traditional material, the composite material has the advantages of high specific strength, light weight, high specific modulus, good fatigue resistance, good vibration reduction performance and the like. For example, the material compounded by carbon fiber and epoxy resin has the specific strength and specific modulus which are several times larger than those of steel and aluminum alloy, and also has the performances of excellent chemical stability, antifriction, abrasion resistance, self lubrication, heat resistance, fatigue resistance, creep resistance, noise elimination, electric insulation and the like. The composite material has synergistic effect of the components in performance, superior comprehensive performance superior to that of single material, and wide application in machinery, instrument, automobile, space flight, etc. Therefore, the manufacturing of the composite material part by using the rapid prototyping technology is urgently needed, the manufacturing period is shortened, and the manufacturing cost is reduced.
Disclosure of Invention
In view of the above, the invention designs and completes a surface exposure rapid prototyping device and a surface exposure rapid prototyping method for a composite material part, which are used for manufacturing a three-dimensional composite material part consisting of carbon fibers and photosensitive resin by using a surface exposure rapid prototyping technology, so that a new way is provided for rapid manufacturing of a complex three-dimensional composite material part, the manufacturing period can be shortened, and the manufacturing cost can be reduced.
The invention solves the problems through the following technical means:
a surface exposure rapid forming device for composite material parts comprises a lifting workbench, wherein the lifting workbench is connected with a lifting workbench motor through a vertically arranged lifting workbench screw rod, the lifting workbench is rigidly connected with an electric sliding table support, a left electric sliding table and a right electric sliding table are respectively arranged on the electric sliding table support, and a left pressing strip and a right pressing strip are respectively arranged on the left electric sliding table and the right electric sliding table; a pattern generator is arranged above the lifting workbench, a resin tank is arranged below the lifting workbench, and a liquid level controller is arranged on the resin tank; the lower part of the resin tank is arranged on the frame; the frame is connected with the reel, winds the carbon fiber woven mesh on the reel, and the carbon fiber woven mesh is placed on the elevating platform, still installs the knife rest in the frame, and the knife rest passes through the knife rest lead screw to be connected with the knife rest motor, installs disc milling cutter on the knife rest.
Furthermore, the device also comprises an upper press roller and an upper press roller motor, wherein the upper press roller is connected with the rack and driven by the upper press roller motor.
Furthermore, the device also comprises a lower pressing roller, the lower pressing roller is connected with the rack through a rotary pair, and the lower pressing roller is driven by the upper pressing roller to rotate.
Further, a winding drum motor is arranged in the winding drum, and the winding drum is driven by the winding drum motor.
Further, the automatic drawing machine further comprises a control system, and the control system is connected with the lifting workbench motor, the left electric sliding table, the right electric sliding table, the tool rest motor, the winding drum motor, the upper press roller motor and the pattern generator respectively.
Further, the control system is connected with a computer.
Furthermore, the resin tank is filled with photosensitive resin, and the photosensitive resin prepolymer is acrylated epoxy resin.
A surface exposure rapid prototyping method of a composite material part comprises the following steps:
7, repeating the steps 2 to 6 until the photosensitive resin of all the layered sections of the part to be molded is cured by the computer to obtain a blank of the composite material part;
and 8, washing the blank of the composite material part, soaking the blank of the composite material part in industrial alcohol for 10 minutes, taking out the blank, and cutting off the carbon fiber woven mesh which is not wrapped by the cured resin to obtain the three-dimensional composite material part containing the carbon fiber woven mesh and the resin.
The surface exposure rapid forming device and method of the composite material part have the following beneficial effects:
(1) the invention discloses a forming device of a composite material part, which comprises: the device comprises a lifting workbench, a left side pressing strip, a left side electric sliding table, a lifting workbench screw rod, a lifting workbench motor, a pattern generator, an electric sliding table support, a right side electric sliding table, a right side pressing strip, an upper compression roller, a cutter rest screw rod, a cutter rest motor, a carbon fiber woven mesh, a winding drum motor, a winding drum, a disc-shaped milling cutter, a liquid level controller, a resin tank, a rack, a control system, a computer, a blank of a composite material part, an upper compression roller motor, a lower compression roller, photosensitive resin and the like.
(2) In the use process of the surface exposure rapid prototyping device, the 3D model of the part is subjected to computer layering processing to obtain data of each layered section of the part model, and the data is sent to a pattern generator to generate an optical digital view; the winding drum and the upper compression roller rotate to convey the carbon fiber woven mesh to a lifting workbench area, and the left side pressing strip and the right side pressing strip press the carbon fiber woven mesh on the lifting workbench; the disc-shaped milling cutter cuts the carbon fiber woven mesh compressed on the lifting workbench, so that the compressed part of the carbon fiber woven mesh is separated from the banded carbon fiber woven mesh, the lifting workbench descends, the carbon fiber woven mesh is immersed into photosensitive resin, the pattern generator projects an optical digital view onto the surface of the liquid photosensitive resin on the lifting workbench, and the liquid photosensitive resin is selectively exposed and cured to form a current layer of a part containing the carbon fiber woven mesh and the cured resin; lifting the lifting workbench to a position where the upper surface of the cured layer is lower than the feeding position by one layered thickness, and loosening the carbon fiber woven mesh on the current layer on the lifting workbench; repeating the steps to obtain a blank of the composite material part; and (3) washing the blank of the composite material part, and cutting off the carbon fiber woven mesh which is not wrapped by the cured resin to obtain the three-dimensional composite material part containing the carbon fiber woven mesh and the resin.
(3) The invention provides a new way for rapidly manufacturing the complex three-dimensional composite material part, has high molding efficiency and simple process, can shorten the manufacturing period and reduce the manufacturing cost.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a general schematic view of a surface exposure rapid prototyping apparatus for a composite material part
FIG. 2 is a schematic view of a part of the molding apparatus exposed to light and cured with resin
FIG. 3 is a schematic view of a carbon fiber woven web material feeding apparatus in a forming apparatus
Wherein: 1. lifting the working table; 2. pressing a left side bar; 3. a left electric sliding table; 4. a lifting table screw; 5. a lifting table motor; 6. a pattern generator; 7. an electric sliding table bracket; 8. a right electric sliding table; 9. pressing a bar on the right side; 10. an upper compression roller; 11. a tool holder screw; 12. a tool holder; 13. a tool rest motor; 14. weaving a carbon fiber mesh; 15 a drum motor; 16 reels of paper; 17 a disc-shaped milling cutter; 18 a liquid level controller; 19 a resin tank; 20 a frame; 21 a control system; 22 a computer; 23 a blank of a composite part; 24, an upper compression roller motor; 25, pressing the roller downwards; 26 a photosensitive resin.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1 and 2, a surface exposure rapid prototyping device for composite material parts comprises a lifting workbench 1, wherein the lifting workbench 1 is connected with a lifting workbench motor 5 through a vertically arranged lifting workbench screw rod 4, and the lifting workbench motor 5 drives the lifting workbench 1 to move along a vertical direction under the control of a control system 21.
Specifically, the electric sliding table support 7 is rigidly connected with the lifting workbench 1, the electric sliding table support 7 is provided with the left electric sliding table 3 and the right electric sliding table 8, the left electric sliding table 3 and the right electric sliding table 8 are provided with the left pressing strip 2 and the right pressing strip 9 respectively, the left electric sliding table 3 and the right electric sliding table 8 drive the left pressing strip 2 and the right pressing strip 9 to move up and down under the control of the control system 21, and the carbon fiber woven mesh 14 is compressed and released.
Specifically, a pattern generator 6 is arranged above the lifting workbench 1, the pattern generator 6 is connected with a computer 22 through a control system 21, under the control of the control system 21, the pattern generator 6 generates an optical digital view according to the model section data generated by the computer 22, and projects the view onto an exposure plane of the photosensitive resin 26, so as to realize selective curing of the photosensitive resin 26.
Specifically, a resin tank 19 is arranged below the lifting workbench 1, the lower part of the resin tank 19 is installed on a rack 20, photosensitive resin 26 is filled in the resin tank 19, prepolymer of the photosensitive resin 26 is acrylated epoxy resin, a liquid level controller 18 is installed on the resin tank 19, and when the lifting workbench 1 drives the carbon fiber woven mesh 14 to sink into the photosensitive resin 26 in the resin tank 19, the liquid level controller 18 can control the liquid level of the resin at an exposure plane position.
Specifically, a rack 20 is connected with a winding drum 16, a winding drum motor 15 is arranged in the winding drum 16, under the control of a control system 21, the winding drum motor 15 drives the winding drum 16 to rotate, a carbon fiber woven mesh 14 is wound on the winding drum 16, the carbon fiber woven mesh 14 is placed on a lifting workbench 1, a tool rest 12 is further installed on the rack 20, the tool rest 12 is connected with a tool rest motor 13 through a tool rest lead screw 11, under the control of the control system 21, the tool rest motor 13 drives the tool rest 12 to move along the direction perpendicular to the moving direction of the carbon fiber woven mesh through the tool rest lead screw 11, a disc-shaped milling cutter 17 is installed on the tool rest 12, and under the control of the control system 21, the tool rest motor 13 drives the disc-shaped milling cutter 17 to rotate.
As shown in fig. 3, a surface exposure rapid prototyping device of composite material part further includes an upper press roll 10, an upper press roll motor 24 and a lower press roll 25, the upper press roll 10 is connected with the frame 20, the lower press roll 25 is connected with the frame 20 through a revolute pair, the upper press roll motor 24 drives the upper press roll 10 to rotate under the control of the control system 21, the upper press roll 10 drives the lower press roll 25 to rotate, the upper press roll 10 and the lower press roll 25 clamp the carbon fiber woven mesh 14, and when the two press rolls rotate, the carbon fiber woven mesh 14 is driven to move.
Specifically, the surface exposure rapid forming method of the composite material part comprises the following steps:
and 8, washing the blank 23 of the composite material part, soaking the blank of the composite material part 23 in industrial alcohol for 10 minutes, taking out the blank, and cutting off the carbon fiber woven mesh which is not wrapped by the cured resin to obtain the three-dimensional composite material part containing the carbon fiber woven mesh and the resin.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. A surface exposure rapid prototyping method of a composite material part is characterized by comprising the following steps:
step 1, a computer (22) carries out layered processing on a 3D model of a part to be molded to obtain data of each layered section of the part model, and the data are sent to a pattern generator (6) connected with the computer (22) through a control system (21);
step 2, a winding drum motor (15) and an upper compression roller motor (24) are started, a winding drum (16) and an upper compression roller (10) rotate, the carbon fiber woven mesh (14) is conveyed to the position below a left side pressing strip (2) in the area of a lifting workbench (1), a left side electric sliding table (3) is started, the left side electric sliding table (3) drives the left side pressing strip (2) to descend, the carbon fiber woven mesh (14) is tightly pressed on the lifting workbench (1), and the winding drum (16), the upper compression roller (10) and the lower compression roller (25) rotate reversely, the carbon fiber woven mesh (14) is tensioned, the right electric sliding table (8) is started, the right electric sliding table (8) drives the right pressing bar (9) to descend, the carbon fiber woven mesh (14) is pressed on the lifting workbench (1), the winding drum motor (15) and the upper compression roller motor (24) are closed, and the winding drum (16), the upper compression roller (10) and the lower compression roller (25) stop rotating;
step 3, a tool rest motor (13) is started, a disc-shaped milling cutter (17) rotates, a tool rest (12) drives the disc-shaped milling cutter (17) to move along the direction perpendicular to the moving direction of the carbon fiber woven net (14), the carbon fiber woven net (14) compressed on the lifting workbench (1) is cut, the compressed part of the carbon fiber woven net (14) is separated from the ribbon-shaped carbon fiber woven net, the tool rest motor (13) is turned off, the disc-shaped milling cutter (17) stops rotating, and the tool rest (12) drives the disc-shaped milling cutter (17) to return to the initial position;
step 4, starting a lifting workbench motor (5), driving the lifting workbench (1) to descend, sinking the carbon fiber woven mesh (14) into the photosensitive resin (26), enabling the upper surface of the carbon fiber woven mesh (14) to be positioned on the same plane with the liquid level of the resin, and closing the lifting workbench motor (5);
step 5, generating an optical digital view by a pattern generator (6) according to the section data of the current layer, projecting the optical digital view onto the surface of liquid photosensitive resin (26) on a lifting workbench (1), and selectively exposing and curing the liquid photosensitive resin (26) to form the current layer of the part, which comprises the carbon fiber woven mesh (14) and cured resin;
step 6, starting a lifting workbench motor (5), enabling the upper surface of a cured layer to be at a position which is lower than a feeding position by a layered thickness when the lifting workbench (1) is lifted, starting a left electric sliding table (3) and a right electric sliding table (8), driving a left pressing strip (2) to ascend through the left electric sliding table (3), driving a right pressing strip (9) to ascend through the right electric sliding table (8), and loosening a carbon fiber woven mesh on the current layer on the lifting workbench (1);
7, repeating the steps 2 to 6 until the computer (22) cures the photosensitive resin of all the layered sections of the part to be molded to obtain a blank (23) of the composite material part;
and 8, washing the blank (23) of the composite material part, soaking the blank (23) of the composite material part in industrial alcohol for 10 minutes, taking out the blank, and shearing off the carbon fiber woven mesh which is not wrapped by the cured resin to obtain the three-dimensional composite material part containing the carbon fiber woven mesh and the resin.
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