CN112793160A - Self-adaptive additive manufacturing and forming equipment - Google Patents
Self-adaptive additive manufacturing and forming equipment Download PDFInfo
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- CN112793160A CN112793160A CN202110179016.3A CN202110179016A CN112793160A CN 112793160 A CN112793160 A CN 112793160A CN 202110179016 A CN202110179016 A CN 202110179016A CN 112793160 A CN112793160 A CN 112793160A
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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
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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
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Abstract
The invention provides self-adaptive additive manufacturing and molding equipment, and relates to the technical field of composite material molding. The self-adaptive additive manufacturing and molding equipment comprises a motion module, a molding platform, a placing platform and a target structure driving and collecting rod; the target structure driving acquisition rod is connected with the power output end of the motion module, and the motion module can drive the target structure driving acquisition rod to move along the directions of a Z axis, an X axis and a Y axis respectively; the forming module is connected with the power output end of the target structure driving collecting rod; the forming platform is connected with one end of the fixed base, and the placing platform is connected with the other end of the fixed base. The problem that the additive manufacturing equipment needs to be driven by a digital model file is solved. According to the invention, through the arrangement of the driving structure between the Y-axis direction driving piece and the target structure driving acquisition rod, the forming module is ensured to accurately print and form the target structural piece on the forming platform without creating a digital model file.
Description
Technical Field
The invention relates to the technical field of composite material forming, in particular to self-adaptive additive manufacturing forming equipment.
Background
Additive manufacturing is another important molding manufacturing technology besides additive manufacturing and equivalent manufacturing, and the rapid manufacturing of the structural member is realized by a layer-by-layer accumulation mode of materials on the basis of a digital model file.
Currently, additive manufacturing technologies are mostly driven by digital model files, that is, before additive manufacturing is performed, the digital model files must be obtained, which generally includes a direct modeling method and a scanning reconstruction method. The former usually adopts three-dimensional modeling software to obtain a digital model file aiming at new product development or existing modeling parameters, and is a real process from nothing to nothing; the latter is usually based on the existing structure, and the digital model file is obtained by acquiring the structure data through a three-dimensional scanning device and through a series of processing procedures, which is a 'from existing to existing' procedure.
In either case, the user is required to have a high technical requirement, that is, the user must know the skill for obtaining the digital model file, which is challenging for persons without relevant foundations.
In addition, all current additive manufacturing equipment needs to be driven by digital model files, the lack of the digital model files can cause the equipment to be incapable of working normally to form a required structure, and the development of novel additive manufacturing equipment is urgently needed to meet the manufacturing requirements when no digital model files exist.
Disclosure of Invention
The invention aims to provide an adaptive additive manufacturing forming device, which aims to solve the technical problem that the additive manufacturing device needs to be driven by a digital model file in the prior art.
The invention provides self-adaptive additive manufacturing molding equipment which comprises a motion module, a molding platform, a placing platform and a target structure driving acquisition rod, wherein the motion module is connected with the molding module;
the target structure driving acquisition rod is connected with the power output end of the motion module, and the motion module can drive the target structure driving acquisition rod to move along the directions of a Z axis, an X axis and a Y axis respectively; the forming module is connected with the power output end of the target structure driving collecting rod; the forming platform is connected with one end of the fixed base of the motion module, arranged on one side of the motion module and positioned below the forming module, and used for placing a target structural member printed by the forming module; the placing platform is connected with the other end of the fixed base and arranged on the other side of the motion module, and the placing platform is used for placing the existing structural member.
Furthermore, the motion module comprises a Z-axis direction driving piece, an X-axis direction driving piece and a Y-axis direction driving piece;
the X-axis direction driving piece is connected with the power output end of the Z-axis direction driving piece, and the Y-axis direction driving piece is connected with the power output end of the X-axis direction driving piece; the target structure driving acquisition rod is connected with the power output end of the driving piece in the Y-axis direction, and the target structure driving acquisition rod can acquire the structural characteristics of the existing structural piece on the placing platform; the Z-axis direction driving piece can drive the target structure to drive the acquisition rod to move along the Z-axis direction through the X-axis direction driving piece and the Y-axis direction driving piece, and the X-axis direction driving piece can drive the target structure to drive the acquisition rod to move along the X-axis direction through the Y-axis direction driving piece; the Y-axis direction driving piece can drive the target structure to drive the acquisition rod to move along the Y-axis direction, and the acquisition end of the target structure driving acquisition rod is adjusted to be abutted against the surface of the existing structural part on the placing platform; the target structure drive acquisition rod can adjust the relative distance between the acquisition ends of the forming module and the target structure drive acquisition rod.
Furthermore, the Y-axis direction driving piece comprises a frame body, a driving source, a positioning mechanism and an adjusting mechanism; the target structure driving acquisition rod comprises a Z-shaped driving rod, a mounting rod and a wear-resistant ball;
the driving source is arranged on the frame body, two ends of the positioning mechanism are arranged on the frame body, the adjusting mechanism is arranged below the positioning mechanism, two ends of the adjusting mechanism are arranged on the frame body, the positioning mechanism can drive the adjusting mechanism to move along the Y-axis direction, and the power output end of the adjusting mechanism is connected with the Z-shaped driving rod;
the forming module is connected with the power output end of one end of the Z-shaped driving rod, and the mounting rod is connected with the other end of the Z-shaped driving rod; the wear-resisting ball adopts the terminal of ball articulated mode connection installation pole, and the structural feature of having the structure on the place the platform can be gathered to wear-resisting ball.
Furthermore, the positioning mechanism comprises a screw rod, a first nut sliding block and a second nut sliding block; the screw is arranged in the frame body, and one end of the first nut sliding block and one end of the second nut sliding block are both connected with the screw;
the adjusting mechanism comprises an adjusting rod, a fixed block, a first return spring and a second return spring; the adjusting rod is connected in the frame body and is arranged at the lower position of the screw rod; the other end of the first nut sliding block and the other end of the second nut sliding block are both arranged on the adjusting rod; the fixed block is connected with the adjusting rod and arranged between the first nut slider and the second nut slider, and the fixed block is also connected with the Z-shaped driving rod; the first reset spring is sleeved on the adjusting rod and arranged between the first nut sliding block and the fixed block; and the second reset spring is sleeved on the adjusting rod and arranged between the second nut sliding block and the fixed block.
Furthermore, a guide boss is arranged at the top end of the Z-shaped driving rod, and a guide cover plate is arranged on the side surface of the frame body;
the guide boss is connected with the guide cover plate in a sliding manner, so that the relative motion of the Z-shaped driving rod and the frame body is realized;
the top of support body is equipped with the connecting block, and the connecting block is connected with the power take off end of X axle direction driving piece.
Furthermore, the Z-shaped driving rod is driven by combining a ball screw and a servo motor or by adopting a hydraulic cylinder.
Furthermore, the forming platform comprises an annular forming bottom plate part, a magnetic adsorber, a magnetic forming plate, a first driver and a second driver;
the annular forming bottom plate is arranged on the fixed base, and the magnetic absorber is arranged inside the annular forming bottom plate; the magnetic forming plate is connected with the annular forming bottom plate part and is arranged below the forming module;
on first driver, second driver all connected unable adjustment base, the both ends of annular shaping bottom plate spare are connected respectively to first driver, second driver, and first driver, second driver can drive annular shaping bottom plate spare and move along the annular direction.
Furthermore, the annular forming bottom plate part comprises a plurality of forming bottom plate modules which are connected in sequence; the forming bottom plate module comprises a forming bottom plate cell element, a heating pipe, a magnetic adsorption sheet and a sealing cover;
the heating pipe is connected in the hollow cavity of the forming bottom plate cell element, the magnetic adsorption sheet is connected at the bottom of the forming bottom plate cell element, and the magnetic adsorption sheet can be adsorbed with the magnetic adsorber;
the end face of the forming bottom plate cell element is provided with a clamping groove, and the sealing cover is connected with the clamping groove.
Further, the placing platform comprises a mounting base and a placing plate;
the mounting base is connected with the other end of the fixing base, the placing plate is connected onto the mounting base, and mounting holes are formed in the placing plate and used for fixing the existing structural member through a locking member;
alternatively, the first and second electrodes may be,
the placing platform comprises a mounting base and a placing plate;
the other end of unable adjustment base is connected to the installation base, places the board and connects on the installation base, places and is equipped with the mounting hole on the board, is equipped with the vacuum aspiration ware in the installation base, and the vacuum aspiration ware has the structure through the mounting hole is fixed.
Further, the forming module comprises a mounting frame, a continuous fiber reinforced thermoplastic material printing mechanism and a material reducing manufacturing mechanism; the mounting frame is connected with a power output end at one end of the Z-shaped driving rod; the continuous fiber reinforced thermoplastic material printing mechanism and the material reducing manufacturing mechanism are respectively connected with the side surfaces of the mounting rack;
the mounting frame comprises a mounting seat and a rotating motor, the mounting seat is connected with a power output end at one end of the Z-shaped driving rod, the rotating motor is connected onto the mounting seat, and the rotating motor can drive the mounting seat to rotate;
the continuous fiber reinforced thermoplastic material printing mechanism is connected with the side surface of the mounting frame through a lifter; the continuous fiber reinforced thermoplastic material printing mechanism comprises a thermoplastic material feeder, a thermoplastic material guide part, a continuous fiber guide part, a thermoplastic material and continuous fiber mixing heater, a temperature detector and a printing head; the input end of the thermoplastic material guide part is connected with the output end of the thermoplastic material feeder, and the output end of the thermoplastic material guide part and the output end of the continuous fiber guide part are both connected with the input end of the thermoplastic material and continuous fiber mixing heater; the output end of the thermoplastic material and continuous fiber mixing heater is connected with a heater, a temperature detector is connected in the heater, and the output end of the heater is connected with a printing head;
the thermoplastic material guide comprises a first throat and a first radiator, and the continuous fiber guide comprises a second throat and a second radiator; the input end of the first throat pipe is connected with the output end of the thermoplastic material feeder, and the first radiator is sleeved outside the first throat pipe; the second radiator is sleeved outside the second throat pipe; the output end of the first throat pipe and the output end of the second throat pipe are both connected with the input end of the thermoplastic material and continuous fiber mixing heater;
the material reducing manufacturing mechanism is connected with a turnover motor.
According to the self-adaptive additive manufacturing forming equipment, the position of the existing structural part is locked by installing the placing platform on the fixed base, the structural characteristics of the existing structural part are acquired by driving the acquisition rod by using the target structure, and the forming module is ensured to accurately print and form the target structural part on the forming platform without creating a digital model file. The additive manufacturing and the subtractive manufacturing are integrated, steps on the surface of the additive manufacturing component can be eliminated through the subtractive manufacturing technology, the surface precision of the structural component is further improved, and in-situ processing of subtractive features can be realized through the subtractive manufacturing module; the method integrates a mechanical acquisition mode, realizes the real-time acquisition of the characteristics of the existing model, directly drives the additive manufacturing unit to manufacture the target structure in real time, does not need the procedures of model scanning or construction and the like, and greatly reduces the use threshold of additive manufacturing equipment.
The invention can realize the functions of the conventional additive manufacturing equipment, such as: the digital model is driven to manufacture, and direct drive and control manufacturing can be realized, namely: the existing model or product is used as a control source without a digital model file, and the additive manufacturing module is directly driven and controlled to manufacture the structure, so that the application range of the additive manufacturing technology is greatly expanded.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structure diagram of an adaptive additive manufacturing molding apparatus according to an embodiment of the present invention;
fig. 2 is a detailed overall structural schematic diagram of an adaptive additive manufacturing molding apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a side surface of the Y-axis driving member connected to the target structure driving collecting rod according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of the other side surface of the Y-axis direction driving element and the target structure driving acquisition rod, which are provided by the embodiment of the invention;
FIG. 5 is a schematic view of the internal structure of a continuous fiber reinforced thermoplastic printing mechanism of a forming module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a forming floor module according to an embodiment of the present invention.
Icon:
100-a motion module; 200-forming a module;
300-a forming platform; 400-placing the platform;
500-a target structure; 600-existing structural member;
700-target structure driving acquisition rod; 101-a stationary base;
a 102-Z axis direction drive member; 103-X axis direction driving member;
104-Y axis direction driving piece; 105-a frame body;
106-a drive source; 107-screw;
108-nut slider one; 109-a second nut sliding block;
110-adjusting rod; 111-fixing blocks;
112-a first return spring; 113-a second return spring;
114-a guide cover plate; 115-connecting blocks;
201-a mounting frame; 202-a continuous fiber reinforced thermoplastic printing mechanism;
203-a subtractive manufacturing mechanism; 204-a mounting seat;
205-a rotating electrical machine; 206-hoisting machine;
207-thermoplastic material feeder; 208-a thermoplastic guide;
209-continuous fiber guide; 210-thermoplastic material and continuous fiber mixing heater;
211-a heater; 212-a temperature detector;
213-a print head; 214-a first throat;
215-a first heat sink; 216-a second throat;
217-a second heat sink; 218-a flipping motor;
301-ring-shaped forming floor elements; 302-a magnetic adsorber;
303-magnetic forming plate; 304-a first driver;
305-a second driver; 306-forming a backplane cell;
307-heating tube; 308-a magnetic adsorbing sheet;
309-sealing cover; 310-card slot;
401-mounting a base; 402-placing a plate;
403-mounting holes; a 701-Z drive rod;
702-a mounting bar; 703-wear resistant balls;
704-guide bosses.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships 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, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 6, the adaptive additive manufacturing molding apparatus provided by the present invention includes a motion module 100, a molding module 200, a molding platform 300, a placement platform 400, and a target structure driving collection rod 700;
the target structure driving acquisition rod 700 is connected with the power output end of the motion module 100, and the motion module 100 can drive the target structure driving acquisition rod 700 to move along the directions of the Z axis, the X axis and the Y axis respectively; the forming module 200 is connected with the power output end of the target structure driving collecting rod 700; the forming platform 300 is connected with one end of the fixed base 101 of the motion module 100, is arranged at one side of the motion module 100 and is positioned below the forming module 200, and the forming platform 300 is used for placing the target structural member 500 printed by the forming module 200; the placing platform 400 is connected to the other end of the fixed base 101 and is disposed at the other side of the moving module 100, and the placing platform 400 is used for placing the existing structural member 600 thereon.
In the embodiment of the present invention, as shown in fig. 1 and fig. 2, the molding module 200 is fixed at the power output end of the target structure driving collecting rod 700 by using bolts, the target structure driving collecting rod 700 is connected with the power output end of the moving module 100, and when the moving module 100 is started, the target structure driving collecting rod 700 can be driven to move along the Z-axis direction, the X-axis direction and the Y-axis direction, respectively, so as to adjust the position of the molding module 200 at the power output end of the target structure driving collecting rod 700 in the Z-axis direction, the X-axis direction and the Y-axis direction. The forming platform 300 is connected with the right end of the fixed base 101 through bolts, and the placing platform 400 is connected with the left end of the fixed base 101 through bolts, so that when the device is started, the target structural member 500 is directly printed on the forming platform 300 by acquiring the structural characteristics of the existing structural member 600 on the placing platform 400.
Further, the motion module 100 includes a Z-axis direction driving member 102, an X-axis direction driving member 103, and a Y-axis direction driving member 104;
the X-axis direction driving piece 103 is connected with the power output end of the Z-axis direction driving piece 102, and the Y-axis direction driving piece 104 is connected with the power output end of the X-axis direction driving piece 103; the target structure driving acquisition rod 700 is connected with the power output end of the Y-axis direction driving piece 104, and the target structure driving acquisition rod 700 can acquire the structural characteristics of the existing structural piece 600 on the placing platform 400; the Z-axis direction driving piece 102 can drive the target structure to drive the acquisition rod 700 to move along the Z-axis direction through the X-axis direction driving piece 103 and the Y-axis direction driving piece 104, and the X-axis direction driving piece 103 can drive the target structure to drive the acquisition rod 700 to move along the X-axis direction through the Y-axis direction driving piece 104; the Y-axis direction driving piece 104 can drive the target structure to drive the acquisition rod 700 to move along the Y-axis direction, the distance between the acquisition end of the target structure driving acquisition rod 700 and the surface of the existing structural member 600 on the placing platform 400 is adjusted before formal printing, and the acquisition end is ensured to be always abutted against the surface of the existing structural member 600 in the printing process; the target structure driven acquisition rod 700 enables adjustment of the relative distance between the molding module 200 and the acquisition end of the target structure driven acquisition rod 700.
In the embodiment of the present invention, as shown in fig. 1 and 2, the Z-axis direction driving member 102, the X-axis direction driving member 103, and the Y-axis direction driving member 104 are driven by a combination of a ball screw and a servo motor, or by a hydraulic cylinder. Two sets of Z-axis direction driving parts 102 are adopted, and the two sets of Z-axis direction driving parts 102 are respectively connected with two ends of the X-axis direction driving part 103 so as to drive the X-axis direction driving part 103 to move along the Z-axis direction, thereby ensuring the stability of the movement position of the X-axis direction driving part 103. Target structure drive acquisition rod 700 adopts the mode drive that ball and servo motor combined together, perhaps adopts the mode drive of pneumatic cylinder to adjust the relative distance between the collection end that becomes module 200 and target structure drive acquisition rod 700, promptly: when the target structure drives the acquisition rod 700 to move along the X-axis direction through the X-axis direction driving element 103, the acquisition end can simultaneously acquire the characteristics of the existing structural member 600 in the X-axis direction and the Y-axis direction, and meanwhile, the forming module 200 duplicates the existing structural characteristics acquired by the acquisition end of the target structure driving acquisition rod 700 on the forming platform 300 and forms the target structural member 500, that is, the characteristics in one layer of the XY plane of the target structural member 500; when the power output end of the target structure driving collecting rod 700 moves along the Y-axis direction, the distance between the forming module 200 and the collecting end can be adjusted, so that the Y-axis direction interlayer distance of the target structure 500 is adjusted, and the number of the target structures 500 and the thickness of the target structures 500 in the Y-axis direction are controlled.
Further, the Y-axis direction driving member 104 includes a frame body 105, a driving source 106, a positioning mechanism, and an adjusting mechanism; the target structure driving acquisition rod 700 comprises a Z-shaped driving rod 701, a mounting rod 702 and a wear-resistant ball 703;
the driving source 106 is arranged on the frame body 105, two ends of the positioning mechanism are arranged on the frame body 105, the adjusting mechanism is arranged below the positioning mechanism, two ends of the adjusting mechanism are arranged on the frame body 105, the positioning mechanism can drive the adjusting mechanism to move along the Y-axis direction, and the power output end of the adjusting mechanism is connected with the Z-shaped driving rod 701;
the forming module 200 is connected with a power output end at one end of the Z-shaped driving rod 701, and the mounting rod 702 is connected with the other end of the Z-shaped driving rod 701; the wear-resistant ball 703 is connected to the end of the mounting rod 702 in a ball-hinged manner, and the wear-resistant ball 703 can acquire structural characteristics of the existing structural member 600 on the placement platform 400.
In the present embodiment, as shown in fig. 3 and 4, the drive source 106 is a drive motor. The Z-shaped driving rod 701 adopts a split structure, so that the replacement is convenient and the service life of the Z-shaped driving rod is prolonged.
A driving member is installed in a horizontal rod on the upper portion of the Z-shaped driving rod 701, and the driving member adopts a ball screw and servo motor combination mode or a hydraulic cylinder mode.
During the use, positioning mechanism can fix a position between support body 105 and the Z type actuating lever 701, then adjusts the distance between support body 105 and the Z type actuating lever 701 through adjustment mechanism to the realization is printed the in-process target structure drive and is gathered wear-resisting ball 703 on the collection end of pole 700 and accurately acquires the structural feature on having the structure 600.
Further, the positioning mechanism comprises a screw 107, a first nut slide block 108 and a second nut slide block 109; the screw 107 is arranged in the frame body 105, and one end of the first nut sliding block 108 and one end of the second nut sliding block 109 are both connected with the screw 107;
the adjusting mechanism comprises an adjusting rod 110, a fixed block 111, a first return spring 112 and a second return spring 113; the adjusting rod 110 is connected in the frame body 105 and is arranged at the lower position of the screw 107; the other end of the first nut sliding block 108 and the other end of the second nut sliding block 109 are both arranged on the adjusting rod 110; the top end of a fixed block 111 is connected with an adjusting rod 110 and is arranged between a first nut slider 108 and a second nut slider 109, and the bottom of the fixed block 111 is connected with a Z-shaped driving rod 701; a first return spring 112 is sleeved on the adjusting rod 110 and arranged between the first nut sliding block 108 and the fixed block 111, and the initial state is a compression state; the second return spring 113 is sleeved on the adjusting rod 110 and arranged between the second nut sliding block 109 and the fixed block 111, and the initial state is a compression state.
In the present embodiment, as shown in fig. 3 and 4, the fixing block 111 and the upper end surface of the Z-shaped driving rod 701 are welded and fixed, or may be fixed by bolts. Threaded holes are formed in the upper end of the first nut slider 108 and the upper end of the second nut slider 109, and the two threaded holes are in threaded connection with the screw 107, so that when the screw 107 is driven to rotate by the driving source 106, the two nut sliders can be positioned on the screw 107 through rotation of the screw. The lower end of the first nut sliding block 108 and the lower end of the second nut sliding block 109 are both provided with through holes and are connected to the adjusting rod 110 in a sliding mode.
When the positioning device is used, the screw 107 is driven by the driving source 106, and the positions of the first nut slider 108 and the second nut slider 109 are positioned, so that the position of the fixed block 111 is positioned, and the position positioning of the Z-shaped driving rod 701 is realized. When the existing structural component 600 on the left side has a convex point, the Z-shaped driving rod 701 moves to the right, the Z-shaped driving rod 701 drives the fixing block 111 to move to the right, the first return spring 112 on the left side is stretched, the second return spring 113 on the right side is compressed, when the existing structural component 600 on the left side has a concave point, the first return spring 112 on the left side is compressed, and the second return spring 113 on the right side is stretched, so that the position adjustment of the Z-shaped driving rod 701 is realized.
In the above embodiment of the present invention, in order to ensure uniform stress, the adjusting mechanism adopts a double return spring structure, the positioning mechanism is set to be a double-nut single screw single guide post structure, and the precompression force of the return spring i 112 is smaller than the precompression force of the return spring ii 113, that is, in a non-operating state, the distance between the fixed block 111 and the nut slider i 108 is smaller than the distance between the fixed block 111 and the nut slider ii 109.
Further, a guide boss 704 is arranged at the top end of the Z-shaped driving rod 701, and a guide cover plate 114 is arranged on the side surface of the frame body 105;
the guide boss 704 is slidably connected to the guide cover 114 to realize the relative movement between the Z-shaped driving rod 701 and the frame body 105.
In this embodiment, as shown in fig. 3 and 4, a guide boss 704 is disposed at the top end of the Z-shaped driving rod 701, and a guide cover 114 is disposed on the side surface of the frame body 105 and is matched with the guide boss 704, so as to ensure stable guiding of the target structure driving collecting rod 700.
Further, a connecting block 115 is arranged at the top end of the frame body 105, and the connecting block 115 is connected with the power output end of the X-axis direction driving piece 103.
In this embodiment, the connection block 115 may be a screw rod, a threaded hole is formed at the power output end of the X-axis direction driving element 103, a threaded hole is also formed at the top end of the frame body 105, and two ends of the screw rod are respectively connected in the two threaded holes to fix the frame body 105 and the power output end of the X-axis direction driving element 103.
Further, the forming platform 300 includes an annular forming base plate member 301, a magnetic adsorber 302, a magnetic forming plate 303, a first driver 304, and a second driver 305;
an annular molding bottom plate part 301 is arranged on the fixed base 101, and a magnetic absorber 302 is arranged inside the annular molding bottom plate part 301; the magnetic forming plate 303 is connected to the ring-forming bottom plate member 301 and is arranged below the forming module 200;
the first driver 304 and the second driver 305 are both connected to the fixed base 101, the first driver 304 and the second driver 305 are respectively connected to two ends of the ring-shaped bottom plate member 301, and the first driver 304 and the second driver 305 can drive the ring-shaped bottom plate member 301 to move along the annular direction.
In the present embodiment, as shown in fig. 2, in order to prevent the annular shaped bottom plate member 301 from slipping during the conveying process, the annular shaped bottom plate member 301 adopts an annular chain type driving manner. The first driver 304 and the second driver 305 each employ a drive motor. When the two driving motors are started, the ring-forming floor members 301 can be driven to rotate in the circular direction, so that the target structures 500 on the upper end surfaces of the ring-forming floor members 301 can be conveyed to the next process.
In order to reliably fix the annular shaped bottom plate 301 in the material increase and decrease manufacturing process, a magnetic absorber 302 is arranged inside the annular shaped bottom plate 301. In order to facilitate the reliable adsorption of the magnetic forming plate 303 and the magnetic adsorber 302, the magnetic adsorber 302 is an electromagnetic adsorption unit, and the adsorption and separation of the annular forming bottom plate 301 are realized by controlling the on-off of current.
Further, the annular shaped floor member 301 comprises a plurality of shaped floor modules connected in series; the forming base plate module comprises a forming base plate cell 306, a heating pipe 307, a magnetic adsorption sheet 308 and a sealing cover 309;
the heating pipe 307 is connected in the hollow cavity of the forming bottom plate cell element 306, the magnetic adsorption sheet 308 is connected at the bottom of the forming bottom plate cell element 306, and the magnetic adsorption sheet 308 can be adsorbed with the magnetic adsorber 302;
the end face of the molded base plate cell 306 is provided with a slot 310, and the sealing cover 309 is connected with the slot 310.
In the present embodiment, as shown in fig. 2 and fig. 6, in order to control the temperature of the annular forming bottom plate 301, a heating pipe 307 is disposed inside the forming bottom plate cell 306, and the temperature of the annular forming bottom plate 301 is controlled by controlling the start and stop of the heating pipe 307. The magnetic attraction pieces 308 can ensure that a plurality of molded bottom plate modules are attracted to the magnetic attraction device 302, and prevent the molded bottom plate modules from shaking in the material adding and reducing manufacturing process. The sealing cover 309 and the clamping groove 310 are arranged to ensure that the end face of the forming bottom plate cell 306 has good sealing performance.
Further, the placing platform 400 includes a mounting base 401 and a placing plate 402;
the mounting base 401 is connected with the other end of the fixing base 101, the placing plate 402 is connected with the mounting base 401, the placing plate 402 is provided with a mounting hole 403, and the mounting hole 403 is used for fixing the existing structural member 600 through a locking member.
In one embodiment of the present invention, the mounting holes 403 are threaded holes formed in the placing plate 402, and the locking members are bolts, and in actual use, the number of the threaded holes and the number of the bolts are correspondingly large. During installation, the bolts are fastened to the bottom of the existing structural member 600 through the threaded holes, and the bottom of the existing structural member 600 is fixed on the placing plate 402.
Further, the placing platform 400 includes a mounting base 401 and a placing plate 402;
the mounting base 401 is connected with the other end of the fixing base 101, the placing plate 402 is connected with the mounting base 401, the placing plate 402 is provided with a mounting hole 403, a negative pressure suction device is arranged in the mounting base 401, and the negative pressure suction device fixes the existing structural member 600 through the mounting hole 403.
In another embodiment of the present invention, the mounting holes 403 are through holes formed in the placement plate 402, and in actual use, the number of the through holes is plural, and the vacuum suction unit is attached to the bottom of the through holes. When the device is installed, the negative pressure suction unit is activated to fix the existing structure 600 to the placing plate 402.
Further, the molding module 200 includes a mounting frame 201, a continuous fiber reinforced thermoplastic material printing mechanism 202, and a subtractive manufacturing mechanism 203; the mounting frame 201 is connected with a power output end at one end of the Z-shaped driving rod 701; the continuous fiber reinforced thermoplastic material printing mechanism 202 and the material reducing manufacturing mechanism 203 are respectively connected with the side surfaces of the mounting frame 201;
the mounting frame 201 comprises a mounting seat 204 and a rotating motor 205, the mounting seat 204 is connected with a power output end at one end of the Z-shaped driving rod 701, the rotating motor 205 is connected with the mounting seat 204, and the rotating motor 205 can drive the mounting seat 204 to rotate;
the continuous fiber reinforced thermoplastic printing mechanism 202 is connected with the side surface of the mounting frame 201 through a lifter 206; the continuous fiber reinforced thermoplastic material printing mechanism 202 includes a thermoplastic material feeder 207, a thermoplastic material guide 208, a continuous fiber guide 209, a thermoplastic material and continuous fiber mixing heater 210, a heater 211, a temperature detector 212, and a print head 213; the input end of the thermoplastic material guiding part 208 is connected with the output end of the thermoplastic material feeder 207, and the output ends of the thermoplastic material guiding part 208 and the continuous fiber guiding part 209 are both connected with the input end of the thermoplastic material and continuous fiber mixing heater 210; the output end of the thermoplastic material and continuous fiber mixing heater 210 is connected with a heater 211, a temperature detector 212 is connected in the heater 211, and the output end of the heater 211 is connected with a printing head 213;
the thermoplastic guide 208 includes a first throat 214 and a first heat sink 215, and the continuous fiber guide 209 includes a second throat 216 and a second heat sink 217; the input end of the first throat 214 is connected with the output end of the thermoplastic material feeder 207, and the first heat sink 215 is sleeved outside the first throat 214; the second radiator 217 is sleeved outside the second throat 216; the output end of the first throat 214 and the output end of the second throat 216 are both connected with the input end of the thermoplastic material and continuous fiber mixing heater 210;
the material reducing manufacturing mechanism 203 is connected with a turnover motor 218.
In this embodiment, as shown in fig. 5, an included angle is formed between the first throat 214 and the second throat 216, and the included angle is 45 ° to ensure that the thermoplastic material and the continuous fiber material are mixed to have a certain tension.
In the present embodiment, as shown in fig. 2, 3, 4, and 5, a rotary motor 205 is provided on the mounting frame 201, and the rotary motor 205 is directly driven by a stepping motor, and can drive the continuous fiber reinforced thermoplastic material printing mechanism 202 and the material reducing mechanism 203 to the operating position. In order to realize the manufacturing of the high-strength lightweight composite material structural member, the continuous fiber reinforced thermoplastic material printing mechanism 202 is adopted as an additive manufacturing module, and in order to realize the rapid surface processing of the printed structural member, the material reduction manufacturing mechanism 203 is adopted as a material reduction manufacturing module in a milling mode. In order to ensure that the zero positions of the additive manufacturing module and the subtractive manufacturing module are consistent during operation, the molding module mounting frame 201 is of a polyhedral rotatable structure, and the additive manufacturing module and the subtractive manufacturing module are respectively arranged on the side surfaces of the mounting frame 201. In order to ensure a compact structure, the mounting frame 201 is directly driven by a stepping motor.
The continuous fiber reinforced thermoplastic material printing mechanism 202 and the material reducing manufacturing mechanism 203 are respectively provided with a driving mechanism which moves along the Z-axis direction and is used for regulating and controlling the relative position of the lowest point of each mechanism. In order to avoid interference between the additive manufacturing module and the subtractive manufacturing module during operation, the additive manufacturing module and the subtractive manufacturing module are respectively provided with a vertical moving module so as to independently control the relative positions of the lowest points of the additive manufacturing module and the subtractive manufacturing module.
In order to realize the manufacturing of various molding structural members, the additive manufacturing module is detachable and can be a pure thermoplastic material printing module, a continuous fiber reinforced thermoplastic material printing module and the like. In order to avoid interference between the additive manufacturing module and the subtractive manufacturing module during operation, the additive manufacturing module is connected to a lifter 206, which is capable of independently controlling the relative positions of the lowest points of the additive manufacturing module and the subtractive manufacturing module.
The thermoplastic material and continuous fiber mixing heater 210 is provided therein with a heating rod and a temperature detector, and the mixed material that has entered the thermoplastic material and continuous fiber mixing heater 210 by the heating rod is heated again, and the temperature of the heated mixed material is detected by the temperature detector.
To achieve truss structure printing and low curvature surface fabrication, the heater 211 is a heating rod of elongated structure. Preferably, the heater 211 is an elongated helical structure. The first heat sink 215 and the second heat sink 217 are both heat dissipation fans.
As shown in fig. 5, during use, the heat generated by the first throat 214 is radiated by the first radiator 215, the heat generated by the second throat 216 is radiated by the second radiator 217, the thermoplastic/continuous fiber mixture obtained by mixing the thermoplastic material with the continuous fiber mixing heater 210 is heated by the heater 211, and the heating temperature of the heater 211 is detected by the temperature detector 212 during heating.
In order to realize multi-direction multi-feature material reduction manufacturing, the material reduction manufacturing module is provided with a turnover motor 218, and the material reduction manufacturing module can be driven to realize the processing of multi-direction plane, hole, groove, curved surface and other features. In order to realize the rapid processing of the material reducing characteristic of the printed structural part, the material reducing manufacturing module adopts a milling mode.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An adaptive additive manufacturing molding apparatus, comprising a motion module (100), a molding module (200), a molding platform (300), a placement platform (400), and a target structure drive acquisition rod (700);
the target structure driving acquisition rod (700) is connected with the power output end of the motion module (100), and the motion module (100) can drive the target structure driving acquisition rod (700) to move along the directions of a Z axis, an X axis and a Y axis respectively; the forming module (200) is connected with a power output end of the target structure driving collecting rod (700); the forming platform (300) is connected with one end of a fixed base (101) of the moving module (100), arranged on one side of the moving module (100) and positioned below the forming module (200), and used for placing a target structural member (500) printed by the forming module (200) on the forming platform (300); the placing platform (400) is connected with the other end of the fixed base (101) and arranged on the other side of the moving module (100), and the placing platform (400) is used for placing an existing structural part (600).
2. The adaptive additive manufacturing molding apparatus of claim 1 wherein the motion module (100) comprises a Z-axis direction drive (102), an X-axis direction drive (103), and a Y-axis direction drive (104);
the X-axis direction driving piece (103) is connected with the power output end of the Z-axis direction driving piece (102), and the Y-axis direction driving piece (104) is connected with the power output end of the X-axis direction driving piece (103); the target structure driving and collecting rod (700) is connected with the power output end of the Y-axis direction driving piece (104), and the target structure driving and collecting rod (700) can collect the structural characteristics of the existing structural piece (600) on the placing platform (400); the Z-axis direction driving piece (102) can drive the target structure to drive the acquisition rod (700) to move along the Z-axis direction through the X-axis direction driving piece (103) and the Y-axis direction driving piece (104), and the X-axis direction driving piece (103) can drive the target structure to drive the acquisition rod (700) to move along the X-axis direction through the Y-axis direction driving piece (104); the Y-axis direction driving piece (104) can drive the target structure to drive the acquisition rod (700) to move along the Y-axis direction, and the acquisition end of the target structure driving acquisition rod (700) is adjusted to be abutted against the surface of the existing structural piece (600) on the placing platform (400); the target structure drive acquisition rod (700) can adjust the relative distance between the molding module (200) and the acquisition end of the target structure drive acquisition rod (700).
3. The adaptive additive manufacturing molding apparatus according to claim 2, wherein the Y-axis direction drive (104) includes a frame body (105), a drive source (106), a positioning mechanism, and an adjustment mechanism; the target structure driving acquisition rod (700) comprises a Z-shaped driving rod (701), a mounting rod (702) and a wear-resistant ball (703);
the driving source (106) is arranged on the frame body (105), two ends of the positioning mechanism are installed on the frame body (105), the adjusting mechanism is arranged below the positioning mechanism, two ends of the adjusting mechanism are installed on the frame body (105), the positioning mechanism can drive the adjusting mechanism to move along the Y-axis direction, and the power output end of the adjusting mechanism is connected with the Z-shaped driving rod (701);
the forming module (200) is connected with a power output end at one end of the Z-shaped driving rod (701), and the mounting rod (702) is connected with the other end of the Z-shaped driving rod (701); the wear-resistant ball (703) is connected with the tail end of the mounting rod (702) in a ball hinge mode, and the wear-resistant ball (703) can acquire structural characteristics of an existing structural part (600) on the placing platform (400).
4. The adaptive additive manufacturing molding apparatus of claim 3 wherein the positioning mechanism comprises a screw (107), a first nut runner (108), and a second nut runner (109); the screw rod (107) is arranged in the frame body (105), and one end of the first nut sliding block (108) and one end of the second nut sliding block (109) are both connected to the screw rod (107);
the adjusting mechanism comprises an adjusting rod (110), a fixed block (111), a first return spring (112) and a second return spring (113); the adjusting rod (110) is connected in the frame body (105) and is arranged below the screw rod (107); the other end of the first nut sliding block (108) and the other end of the second nut sliding block (109) are both arranged on the adjusting rod (110); the fixed block (111) is connected with the adjusting rod (110) and arranged between the first nut slider (108) and the second nut slider (109), and the fixed block (111) is also connected with the Z-shaped driving rod (701); the first return spring (112) is sleeved on the adjusting rod (110) and arranged between the first nut sliding block (108) and the fixed block (111); the second return spring (113) is sleeved on the adjusting rod (110) and arranged between the second nut sliding block (109) and the fixed block (111).
5. The adaptive additive manufacturing molding apparatus according to claim 4, wherein a top end of the Z-shaped driving rod (701) is provided with a guide boss (704), and a side surface of the frame body (105) is provided with a guide cover plate (114);
the guide boss (704) is connected with the guide cover plate (114) in a sliding manner, so that the Z-shaped driving rod (701) and the frame body (105) can move relatively;
the top of support body (105) is equipped with connecting block (115), connecting block (115) with the power take off end of X axle direction driving piece (103) is connected.
6. An adaptive additive manufacturing molding apparatus according to claim 5, wherein the Z-shaped drive rod (701) is driven by a combination of a ball screw and a servo motor, or by a hydraulic cylinder.
7. The adaptive additive manufacturing molding apparatus of claim 1 wherein the molding platform (300) comprises an annular molding floor member (301), a magnetic adsorber (302), a magnetic molding plate (303), a first driver (304), and a second driver (305);
the annular molding bottom plate component (301) is arranged on the fixed base (101), and the magnetic absorber (302) is arranged inside the annular molding bottom plate component (301); the magnetic forming plate (303) is connected with the annular forming bottom plate component (301) and is arranged below the forming module (200);
the first driver (304) and the second driver (305) are connected to the fixing base (101), the first driver (304) and the second driver (305) are respectively connected to two ends of the annular forming bottom plate piece (301), and the first driver (304) and the second driver (305) can drive the annular forming bottom plate piece (301) to move along the annular direction.
8. The adaptive additive manufacturing molding apparatus of claim 7 wherein the annular shaped floor member (301) comprises a plurality of sequentially connected shaped floor modules; the forming base plate module comprises a forming base plate cell element (306), a heating pipe (307), a magnetic adsorption sheet (308) and a sealing cover (309);
the heating pipe (307) is connected in the hollow cavity of the forming bottom plate cell element (306), the magnetic adsorption sheet (308) is connected at the bottom of the forming bottom plate cell element (306), and the magnetic adsorption sheet (308) can be adsorbed with the magnetic adsorber (302);
the end face of the forming bottom plate cell element (306) is provided with a clamping groove (310), and the sealing cover (309) is connected with the clamping groove (310).
9. The adaptive additive manufacturing molding apparatus of claim 1 wherein the placement platform (400) comprises a mounting base (401) and a placement plate (402);
the mounting base (401) is connected with the other end of the fixing base (101), the placing plate (402) is connected with the mounting base (401), the placing plate (402) is provided with a mounting hole (403), and the mounting hole (403) is used for fixing the existing structural part (600) through a locking piece;
alternatively, the first and second electrodes may be,
the placing platform (400) comprises a mounting base (401) and a placing plate (402);
the mounting base (401) is connected with the other end of the fixing base (101), the placing plate (402) is connected with the mounting base (401), a mounting hole (403) is formed in the placing plate (402), a negative pressure suction device is arranged in the mounting base (401), and the negative pressure suction device fixes the existing structural part (600) through the mounting hole (403).
10. The adaptive additive manufacturing molding apparatus of claim 3 wherein the molding module (200) comprises a mounting frame (201), a continuous fiber reinforced thermoplastic printing mechanism (202), and a subtractive manufacturing mechanism (203); the mounting rack (201) is connected with a power output end at one end of the Z-shaped driving rod (701); the continuous fiber reinforced thermoplastic material printing mechanism (202) and the material reducing manufacturing mechanism (203) are respectively connected with the side surface of the mounting frame (201);
the mounting frame (201) comprises a mounting seat (204) and a rotating motor (205), the mounting seat (204) is connected with a power output end at one end of the Z-shaped driving rod (701), the rotating motor (205) is connected with the mounting seat (204), and the rotating motor (205) can drive the mounting seat (204) to rotate;
the continuous fiber reinforced thermoplastic material printing mechanism (202) is connected with the side surface of the mounting frame (201) through a lifter (206); the continuous fiber reinforced thermoplastic material printing mechanism (202) comprises a thermoplastic material feeder (207), a thermoplastic material guide part (208), a continuous fiber guide part (209), a thermoplastic material and continuous fiber mixing heater (210), a heater (211), a temperature detector (212) and a printing head (213); the input end of the thermoplastic material guiding part (208) is connected with the output end of the thermoplastic material feeding machine (207), and the output end of the thermoplastic material guiding part (208) and the output end of the continuous fiber guiding part (209) are both connected with the input ends of the thermoplastic material and continuous fiber mixing and heating machine (210); the output end of the thermoplastic material and continuous fiber mixing heater (210) is connected with the heater (211), the temperature detector (212) is connected in the heater (211), and the output end of the heater (211) is connected with the printing head (213);
the thermoplastic material guide (208) comprises a first throat (214) and a first heat sink (215), the continuous fiber guide (209) comprises a second throat (216) and a second heat sink (217); the input end of the first throat pipe (214) is connected with the output end of the thermoplastic material feeder (207), and the first radiator (215) is sleeved outside the first throat pipe (214); the second radiator (217) is sleeved outside the second throat pipe (216); the output end of the first throat (214) and the output end of the second throat (216) are connected with the input end of the thermoplastic material and continuous fiber mixing heater (210);
and the material reducing manufacturing mechanism (203) is connected with a turnover motor (218).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110179016.3A CN112793160A (en) | 2021-02-08 | 2021-02-08 | Self-adaptive additive manufacturing and forming equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110179016.3A CN112793160A (en) | 2021-02-08 | 2021-02-08 | Self-adaptive additive manufacturing and forming equipment |
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| CN112793160A true CN112793160A (en) | 2021-05-14 |
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| CN202110179016.3A Withdrawn CN112793160A (en) | 2021-02-08 | 2021-02-08 | Self-adaptive additive manufacturing and forming equipment |
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Application publication date: 20210514 |