A kind of five-axle linkage 3D printer organization
Technical field
The present invention relates to a kind of five-axle linkage 3D printer organization. A kind of taking mathematical model file as base specificallyPlinth, is cut into slices, and uses special wax material, powdery metal or the plastics etc. can jointing material, by extruding of parallel institution controlHead is realized the mobile print of x, y, z axle, and the lower moving platform of two screw drive controls is realized the rotating print of u, v axle, thenManufacture the 3D printer of three-dimensional object with jointing material from level to level, belong to 3D printer field.
Background technology
3D prints and has brought world's manufacturing industry revolution, has overturned traditional mode of production, needs one badly and can realize multiaxis and beatThe 3D printer printing. Traditional 3 D-printing device, generally adopts worm drive, controls three directions of x, y, z axle of extruder headMovement, operating efficiency is low, and prints and the limitation of material because of three axles, object occurs that hanging structure very easily caves in, and designsShortcomings, can not meet multi-field application demand.
The 3D printer of existing maturation only stops 3 axles and prints, and five axles are printed the application of printing expanding greatly 3D.
Because manufacturing by accumulation, successively printing constructed object, although the very thin section that every one deck is printed, at X-YThe raising of directional resolution is very restricted, and can be formed with certain thickness one-level level " step ", as the object table of need printingFace is bending arc, can cause accuracy error, just can obtain ganoid " high-resolution " article through surface finish;Adopt five-axle linkage 3D printer can greatly improve suface processing quality.
Tradition 3D printer also can be used supporter in the process of printing, as prints some and have the object of reversal of the natural order of things shape,Need be with the material that is easy to a bit remove (as soluble material) as supporter. 3 axle 3D printers, always along A to printing, cannotImprove, five-axle linkage 3D printer change A to 90 ° of side veers print, can solve the structural issue of transitional region.
Summary of the invention
For the existing above-mentioned problems of 3D printer, the invention provides a kind of five-axle linkage 3D printer organization.Concretely, be the mobile print of realizing x, y, z axle by the extruder head of parallel institution control, two screw drive controlsLower moving platform is realized the rotating print of u, v axle, completes five-axle linkage and print on lower moving platform the 3D printer of three-dimensional body
Technical scheme provided by the invention is:
A kind of five-axle linkage 3D printer organization,, described device comprise airframe systems, control system, print system,Display system. Airframe systems is by (4) cramp bar, (10) slide block, (11) Timing Belt, (12) synchronous pulley, (13) jointBall a, (22) frame composition; Control system is made up of control module; Print system by (1) hinge, (2) spherical pair a,(3) outside framework, (5) extruder head, (6) fan, (7) threaded fastener a, (8) v shape plate, (9) parallel arm, (14)Threaded fastener b, (15) upper moving platform, (16) joint ball b, (17) lower moving platform; (18) screw rod a, (19) soft companyConnect shaft coupling a, (20) motor a, (21) spherical pair b, (23) motor b, (24) be flexible coupling shaft coupling b, (25) screw rodB composition; Display system is made up of control system, display screen.
(22) all parts of rack support, are the equilateral triangular prism of hollow, two one group of (4) cramp bar, three ribsLimit place is each arranges one group, does for forming (10) slide block the line slideway pumping; Meanwhile, upper and lower at three seamed edgesEach one (12) synchronous pulley of arranging, provides power by below motor, (11) toothed belt transmission. (10) slide block is by sliding bearingMatch with (4) cramp bar, block one side of (11) Timing Belt by inner concaveconvex structure. (15) upper moving platform, (10) are slidedPiece is connected in respectively the two ends of a pair of parallel arm by one group of (16) joint ball b, (13) joint ball a, form parallelogramMechanism, has improved mechanism stable and rigidity. (6) fan is fixed on (8) v shape plate, (8) by (7) threaded fastener aV shape plate is fixed on (15) upper moving platform by (14) threaded fastener b, ensures that (6) fan becomes one with (5) extruder headDetermine angle, be easy to it to dispel the heat. (5) extruder head is fixed on (15) upper moving platform, and there is spring bearing upper end, has spiral shellRevolve shape engraved structure, the heat of the material hot melt that is easy to leave.
(2) spherical pair a main body is one shaft-like, is connected by a sponson and (1) hinge, and end is a sphere,Match with the overhanging boom end of (3) outside framework, form spherical pair; Bar portion connects a nut, and screw rod b matches with (25).(24) the shaft coupling b that is flexible coupling connects (23) motor b rotor, (25) screw rod b. In like manner, (21) spherical pair b connects (17)The lower outside boom portion of lower moving platform, forms spherical pair; By a fixing nut of bar portion, screw rod a matches with (18);Also be connected by a sponson and (1) hinge. (19) be flexible coupling shaft coupling a connect (18) screw rod a, (20) motor aRotor, makes it common rotation.
Under (22) frame, arrange the motor of control module and three drivings (12) synchronous pulley work. By calculatingMachine modeling, then by the section of mathematical model file, thereby instruct print system co-ordination, successively print three-dimensional body. (5) squeezeThe filament mouth of lifting one's head is equipped with pressure sensor. When this 3D printer work, after material hot melt, warp is extruded by (5) extruder head, simultaneously(6) fan is its heat radiation. (5) extruder head close contact to pressure reaches setting value, and pressure sensor is perception at once, will believeBreath feeds back to control module, and (6) rotation speed of the fan reduces then, ensures that weaving silk of hot melt can be adhered to (17) lower moving platform. WhenWorking time, while reaching setting value, pressure sensor quit work, and it is normal that (6) rotation speed of the fan recovers. Control module control motorCo-ordination, through the transmission of (11) Timing Belt one-level, parallel-crank mechanism secondary transmission, movement output is upper moving to (15)Platform, (5) extruder head is synchronized with the movement, and can realize the motion of three directions of x, y, z axle of (5) extruder head. Control moduleAlso control (20) motor a, (23) motor b co-ordination, (18) screw rod a, (25) screw rod b rotate, two screw rods spiralTransmission, and then (1) hinge folding, realize turning round around u, v axle of (3) outside framework, (17) lower moving platform through ball pivot, reachesTo the printing of the 4th axle, the 5th axle, complete five-axle linkage and print three-dimensional body. Control module by process (the working time, beatPrint thickness, residue working time etc.) output to display screen.
The invention has the beneficial effects as follows:
The present invention be to provide a kind of five-axle linkage 3D printer organization,, this 3D printer has following characteristics:
1. the upper moving platform of control of the present invention (15) does three degree of freedom motion, and (17) lower moving platform does two frees degreeMotion, then realizes five-axle linkage and prints 3D solid, improves print quality;
2. five-axle linkage of the present invention mechanism, can realize along the movement of x, y, z axle and around the axial u of x, y, z,The revolution of v axle, object to be printed can do gyration, improves widely and prints technique;
3. (20) of the present invention motor a, (23) motor b co-ordination, (18) screw rod a, (25) screw rod b turnMoving, two screw rods transmission, and then (1) hinge folding, realize (3) outside framework, (17) lower moving platform rotation through ball pivot;
4. the present invention changes traditional along A to the mode of doing X-Y plane layering processing, stack moulding printing objects, interchangeablePrint mutually at B, well solve structural strength, precision problem.
Brief description of the drawings
The front view of a kind of five-axle linkage 3D of Fig. 1 printer organization
The axonometric drawing of a kind of five-axle linkage 3D of Fig. 2 printer organization
The local enlarged diagram of 3-freedom parallel mechanism of a kind of five-axle linkage 3D of Fig. 3 printer organization
The local enlarged diagram of two screw rods transmission of a kind of five-axle linkage 3D of Fig. 4 printer organization
In figure, 1, hinge; 2, spherical pair a; 3, outside framework; 4, cramp bar; 5. extruder head; 6, fan;7, threaded fastener a; 8, v shape plate; 9, parallel arm; 10, slide block; 11, Timing Belt; 12, synchronous pulley; 13, closeJoint ball a; 14, threaded fastener b; 15, upper moving platform; 16, joint ball b; 17, lower moving platform; 18, screw rod a; 19,Shaft coupling a is flexible coupling; 20, motor a; 21 spherical pair b; 22, frame; 23, motor b; 24, the shaft coupling b that is flexible coupling;25, screw rod b.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Invention is mainly made up of airframe systems, control system, print system, display system.
As shown in Figure 2, all parts of (22) rack support, are the equilateral triangular prism of hollow, two one of (4) cramp barsGroup, three seamed edge places respectively arrange one group, do for forming (10) slide block the line slideway pumping; Meanwhile, threeIndividual seamed edge is respectively arranged one (12) synchronous pulley up and down, provides power by below motor. (10) slide block is by sliding bearing and (4)Cramp bar matches, and blocks one side of (11) Timing Belt by inner concaveconvex structure, realizes (11) toothed belt transmission.
As shown in Figure 3, (15) upper moving platform, (10) slide block are respectively by one group of (16) joint ball b, (13)Joint ball a is connected in the two ends of a pair of parallel arm, forms parallel-crank mechanism, has improved mechanism stable and rigidity. (6)Fan is fixed on (8) v shape plate by (7) threaded fastener a, and (8) v shape plate is fixed on by (14) threaded fastener b(15) upper moving platform, ensures that (6) fan and (5) extruder head are angled, is easy to it to dispel the heat. (5) extrudeHead is fixed on (15) upper moving platform, and there is spring bearing upper end, has spirality engraved structure, the heat of the material hot melt that is easy to leaveAmount.
As shown in Figure 4, (2) spherical pair a main body is one shaft-like, be connected by a sponson and (1) hinge, and endPortion is a sphere, matches with the overhanging boom end of (3) outside framework, forms spherical pair; Bar portion connects a nut, with (25) spiral shellBar b matches. (24) the shaft coupling b that is flexible coupling connects (23) motor b rotor, (25) screw rod b. In like manner, (21) sphereSecondary b connects the lower outside boom portion of (17) lower moving platform, forms spherical pair; By a fixing nut of bar portion, with (18)Screw rod a matches; Also be connected by a sponson and (1) hinge. (19) be flexible coupling shaft coupling a connect (18) screw rodA, (20) motor a rotor.
As shown in Figure 2, under (22) frame, arrange the electricity of control module and three drivings (12) synchronous pulley workMachine. By microcomputer modelling, then by the section of mathematical model file, thereby instruct print system co-ordination, successively print three-dimensionalObject. (5) extruder head filament mouth is equipped with pressure sensor. When this 3D printer work, after material hot melt, warp is extruded by (5)Head is extruded, and (6) fan is its heat radiation simultaneously. (5) extruder head close contact to pressure reaches setting value, and pressure sensorCarve perception, information is fed back to control module, (6) rotation speed of the fan reduces then, ensures that weaving silk of hot melt can be adhered to (17)Lower moving platform. In the time that the working time reaches setting value, pressure sensor quits work, and it is normal that (6) rotation speed of the fan recovers. ControlThe work of module controls motor coordination, through the transmission of (11) Timing Belt one-level, parallel-crank mechanism secondary transmission, by movement outputTo (15) upper moving platform, (5) extruder head is synchronized with the movement, and can realize the fortune of three directions of x, y, z axle of (5) extruder headMoving. Control module is also controlled (20) motor a, (23) motor b co-ordination, and (18) screw rod a, (25) screw rod b rotate,Two screw rods worm drive, and then (1) hinge folding, through ball pivot realize the lower moving platform of (3) outside framework, (17) around u, vAxle revolution, reaches the printing of the 4th axle, the 5th axle, completes five-axle linkage and prints three-dimensional body. Control module is by process (workDo time, print thickness, residue working time etc.) output to display screen.