A kind of line laser spiral lift increasing material manufacturing equipmentTechnical field
The invention belongs to increasing material manufacturing equipment technical field, more particularly to one kind to have linear laser and spiral liftIncreasing material manufacturing laser formation equipment.
Background technology
Increases material manufacturing technology its to be molded raw material be usually powder, silk, chemical liquid etc., and the master of commercial Application at presentFlow Technique be all using laser or electron beam be energy source by powder fusing or molding bonded, such as SLM, SLS, LSF, EBM etc.Technology, its raw material are tens to hundreds of microns of dusty material., will by powder supplying mechanism and powdering mechanism in forming processPowder is uniformly divided on molded surface, recycles the energy sources such as laser to melt the powder in surface geometry in particular region,Metallurgical binding is produced, is finally molded exploded perspective.
Existing selective laser equipment (SLM SLS), its forming area only have one piece, generally use lasing light emitter and galvanometer systemUnite and the laser formation in x-y directions is carried out to shaping area, and it is three-dimensionally shaped to use the z-axis mechanism being vertically moved up or down to be formed.In order to realizeFunction above, the structure of equipment molding cavity need complicated dust feeder, power spreading device and receive the mechanisms such as powder device, cause to setStandby overall structure is larger, and improving manufacturing cost reduces hall space utilization rate.In its equipment running process, z-axis often drops oneLayer needs powdering mechanism to spread current bisque, could carry out the laser scanning fusing of current layer.Because the speed of mechanical movement is remoteLess than the speed of laser scanning, therefore spread the process principle of one layer of powder sintering once and cause the shaping speed of final equipment slower.
The content of the invention
The present invention, which provides one kind, has linear laser and spiral lift increasing material manufacturing laser formation equipment principle, with solutionIt is proposed that existing equipment structure is bigger than normal, the problems such as shaping speed is slow in certainly above-mentioned background technology, and can realize and can realize powdering mistakeJourney and laser scanning process continuous firing and be independent of each other, while the continuous helical growth of molding part can avoid laser from melting layer by layerEach layer surrounds and watches the problems such as anisotropic of structure during change.
Technical problem solved by the invention is realized using following technical scheme：
A kind of line laser spiral lift increasing material manufacturing equipment, including an identical breadth forming room it is corresponding intoProfile shaft, wherein forming room are made up of integral type powder feed mechanism and linear optical system；Corresponding one of shaping axle it is circular intoType region, and shaping axle can realize the spiral lifting of shaped platform in forming area by transmission mechanism.During work, shaping is flatPlatform rotates automatically to be declined and is existed by integral type powder feed mechanism from the continuous powdering in one end of shaped platform, linear optical systemThe other end carries out linear laser fusing, so as to realize the continuously shaped process of equipment laser fusion and the spiral growth of molding part.In addition, the outside of forming room is also associated with air path system, for ensureing the inert gas environment in equipment work.
Preferably, the forming room of described identical breadth and corresponding shaping axle refer to that forming room with shaping axle is upper nextBody formula cylindrical structure, and pass through sealing clamp abutting joint.
Preferably, described integral type powder feed mechanism includes the powder falling bucket and scraper of long cartridge type, the end of powder falling bucketThe rotating shaft of fluted type, scraper front end is persistently delivered to powder by the rotation of rotating shaft.
Preferably, Material Sensor is equipped with described powder falling bucket, and charge door is left on top.
Preferably, described linear optical system is made up of laser and linear galvanometer, and described linear galvanometer only has oneIndividual deflection eyeglass, for realize laser x to linear scan.
Preferably, described shaping axle is made up of power transmission shaft, turntable, shaped platform etc., the circle wherein on shaped platformShape region is referred to as forming area.
Preferably, described forming room leaves air inlet and air outlet, and described air path system is connected to air inlet with going outOn air port.
Preferably, described air path system includes blower fan, filter and gas valve.
Preferably, described continuously shaped process refers in work that shaped platform is continuously rotated and declined, powder falling bucket rotating shaftPersistently rotate powder falling, scraper powdering always, the equipment course of work that linear laser persistently scans.
Preferably, the spiral growth of described molding part be due to shaping axial screw decline, caused by laser fusionRegion helix formula sinters.
The above-mentioned technical proposal advantageous effects of the present invention are as follows：
1st, the present invention includes circular forming room and the shaping axis connection of about one integral type, and remaining device is in forming roomIn shaping axle, miniaturization, the device structure of densification, reduce equipment manufacturing costs and save equipment occupation space.
2nd, molding part is realized by integral type powder feed mechanism and the continuous firing of linear optical system in the present inventionIt is continuously shaped, change the batch (-type) molding mode of current one layer of powder lf of equipment-laid once, reduce molding time,Improve shaping efficiency.
3rd, a kind of line laser spiral lift increasing material manufacturing equipment of the present invention, screw due to shaping axle is so as to causingThe spiral growth of molding part, advantageously account for anisotropic that existing equipment occurs caused by sintering layer by layer per Rotating fields etc.Problem.
Brief description of the drawings
Fig. 1 is a kind of line laser spiral lift increasing material manufacturing equipment schematic of the present invention；
Description of reference numerals：
1- forming room, 2- powder falling buckets, 3- rotating shafts, 4- scrapers, 5- sealing clamps, 6- shaped platforms, 7- shaping axles, 8- rotationsPlatform, 9- rotary shafts, 10- powder fill areas, 11- molding parts, 12- laser, 13- air inlets, 14- blower fans, 15- filters, 16- go outAir port, 17- lasers, 18- deflection eyeglasses, 19- charge doors.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and toolBody embodiment is described in detail.Those skilled in the art are these it is to be understood that following specific embodiments or embodimentInvent for the set-up mode for the series of optimum that the specific content of the invention is enumerated is explained further, and between these set-up modesCan be combined with each other or it is interrelated use, unless clearly proposing some of which or a certain specific real in the present inventionSetting can not be associated or be used in conjunction with other embodiments or embodiment by applying example or embodiment.It is meanwhile followingThe set-up mode of specific embodiment or embodiment only as optimization, and not as the reason for limiting protection scope of the present inventionSolution.
As shown in figure 1, a kind of line laser spiral lift increasing material manufacturing equipment, include the forming room 1 of an identical breadthCorresponding shaping axle 7, wherein forming room 1 are made up of integral type powder feed mechanism and linear optical system；Shaping axle 7 is rightA circular forming area is answered, and shaping axle 7 can realize the spiral liter of shaped platform 6 in forming area by transmission mechanismDrop.During work, rotation declines and continuously spread from one end of shaped platform by integral type powder feed mechanism shaped platform 6 automaticallyPowder, linear optical system the other end carry out linear laser fusing, so as to realize the continuously shaped process of equipment laser fusion withThe spiral growth of molding part.In addition, the outside of forming room 1 is also associated with air path system, for ensureing the inertia in equipment workGaseous environment.
Preferably, the forming room 1 of described identical breadth and corresponding shaping axle 7 refer to that forming room 1 with shaping axle 7 is upperLower integral type cylindrical structure, and pass through the abutting joint of sealing clamp 5.
Preferably, described integral type powder feed mechanism includes the powder falling bucket 2 and scraper 4 of long cartridge type, the end of powder falling bucketThe rotating shaft 3 of fluted type is held, the front end of scraper 4 is persistently delivered to powder by the rotation of rotating shaft 3.
Preferably, Material Sensor is equipped with described powder falling bucket 2, and charge door 19 is left on top.
Preferably, described linear optical system is made up of laser 17 and linear galvanometer, and described linear galvanometer only hasOne deflection eyeglass 18, for realize laser x to linear scan.
Preferably, described shaping axle is made up of power transmission shaft 9, turntable 8, shaped platform 6 etc., wherein on shaped platform 6Border circular areas be referred to as forming area.
Preferably, described forming room leaves air inlet 16 and air outlet 13, and described air path system is connected to air inlet16 with air outlet 13 on.
Preferably, described air path system includes blower fan 14, filter 15 and gas valve.
Preferably, described continuously shaped process refers in work, and shaped platform 6 is continuously rotated and declined, and powder falling bucket turnsAxle 3 persistently rotates powder falling, the powdering always of scraper 4, the equipment course of work that linear laser persistently scans.
Preferably, the spiral growth of described molding part 11 be due to shaping axle 7 spiral decline, caused by laser meltChange region helix formula sintering.
A kind of line laser spiral lift increasing material manufacturing equipment of the present invention, workflow are as follows：
In forming process such as Fig. 1, when equipment is started working, shaped platform 6 is in highest order and contacted with scraper 4, powder fallingPowder is filled up in bucket 2, before powder is fallen into scraper 4 by rotating shaft 3 from groove.
Further, the spiral under the drive of rotary shaft 9 of shaped platform 6 declines, and shaped platform 6 rotates along the surface of scraper 4, andPowder is paved on shaped platform 6；
Further, laser 17 sends laser 12, and for laser 12 under the regulation of deflection eyeglass 18, point-by-point sintering current layer is straightLine region, because the speed of laser 12 is far faster than the rotation of rotary shaft 9, therefore realize lasting linear coil sintering；
Further, when the level transducer alarm in powder falling bucket 2, illustrate powder deficiency in powder falling bucket 2, can now lead toCross charging aperture 19 and add powder；
Further, in the equipment course of work, by blower fan 14 and filter 15 by cigarette caused by lf in forming room 1Dirt is sucked by air inlet 13, and the gas of cleaning is blown out from air outlet 16；
Further, after the completion of the lf of part 11 to be formed, clip 5 of dismantling, whole shaping axle 7 is taken away, by shaping axle 7Powder 10 remove totally, and molding part 11 is taken out together with shaped platform 6, then carry out the post processing work of molding part 11.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is rightFor those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change orChange.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out orAmong changing still in the protection domain of the invention.