CN105922570A - Selective plasma melting rapid prototyping equipment and rapid prototyping method - Google Patents

Selective plasma melting rapid prototyping equipment and rapid prototyping method Download PDF

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Publication number
CN105922570A
CN105922570A CN201510788765.0A CN201510788765A CN105922570A CN 105922570 A CN105922570 A CN 105922570A CN 201510788765 A CN201510788765 A CN 201510788765A CN 105922570 A CN105922570 A CN 105922570A
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China
Prior art keywords
plasma
printing
print
distance
workpiece
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CN201510788765.0A
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CN105922570B (en
Inventor
华云峰
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BICHENG (BEIJING) TECHNOLOGY CO., LTD.
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Sinoadditive Manufacturing Equipment Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/001Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention discloses selective plasma melting rapid prototyping equipment and a rapid prototyping method. The equipment comprises a monitoring system, a plasma beam processing system, a level printing table and a powder sending and spreading device. The plasma beam processing system includes a plurality of plasma beam processing devices; each plasma beam processing device is composed of a plasma generator, a printing position adjusting device and a gas supply device; the monitoring system includes a plurality of plasma beam processing monitoring devices; each plasma beam processing monitoring device includes a temperature detection unit, a horizontal movement controller, a distance detecting unit and a printing distance adjusting controller. The method comprises the following steps: 1, acquisition of a 3D model of a workpiece to be molded, and hierarchical slicing processing; 2, scanning path filling; 3, printing path acquisition; and 4, printing layer by layer from top to bottom. The invention has the advantages of reasonable design, simple operation, high molding efficiency, good usage effect, no need of protective atmosphere or the vacuum environment, and direct operation in atmosphere environment.

Description

A kind of constituency plasma fusing rapid forming equipment and quick molding method
Technical field
The invention belongs to rapid shaping technique field, especially relate to the plasma fusing of a kind of constituency quickly Former and quick molding method.
Background technology
At present, domestic and international metal parts rapid shaping technique there is precinct laser fusion rapid molding technology (Selective laser melting, SLM).United States Patent (USP) such as Patent No. US7047098 “PROCESS AND DEVICE FOR PRODUCING A SHAPED BODY BY SELECTIVE LASER MELTING " describe a kind of precinct laser utilizing three-dimensional digital model to manufacture fine and close part in detail and melt Change manufacturing process and equipment thereof.Chinese invention patent " a kind of metal of Publication No. CN1603031A Part precinct laser fusion rapid molding method and device thereof " disclose a kind of metal parts precinct laser Fusion rapid molding method and device thereof.This device includes that semiconductor pumped YAG laser or optical fiber swash Light device, light beam focusing system, profiled member cylinder and powder cylinder, semiconductor pumped YAG laser or optical fiber Laser instrument is connected with light beam focusing system, and focuses on and scan in profiled member cylinder, and profiled member cylinder is by paving Powder cylinder is connected with powder cylinder, and paving powder cylinder connects driving motor, drives motor and computer phase Connect.
In order to prepare more large-scale part and improve rapid shaping efficiency, take mobile galvanometer scheme or Laser array and optical system array approaches.The Chinese invention of Publication No. CN103071795A is special Profit " mobile galvanometer selective laser melting SLM former " discloses a kind of mobile galvanometer selectivity Laser fusion SLM former.This equipment includes by communication line with the X with cross slide way group The digital control system that axle linear electric motors are connected with the Y-axis linear electric motors of longitudinal rail group, X-axis straight-line electric Machine and Y-axis linear electric motors constitute turntable driving structure, this same laser bundle-enlarging collimation of turntable driving structure Mirror group drive connection, snaps in galvanometer unit bottom laser bundle-enlarging collimation mirror group, sets below galvanometer unit It is equipped with shaping work package, is provided with indifferent gas bromhidrosis shaping between work package and galvanometer unit Curtain.The Chinese invention patent of Publication No. CN 102266942A " directly manufactures the constituency of heavy parts Laser fusion rapid molding equipment " disclose a kind of direct manufacture large compact part precinct laser melt Change rapid forming equipment.This equipment mainly include laser array, optical system array, moulding cylinder, Moulding cylinder three-dimensional zone heating insulation construction, moulding cylinder weight balancing system, substrate levelling device, Double back receive cylinder, double storage powder case, double quantitative powder feeding and powder discharging device, power spreading device, protective atmosphere cover, Gas purge system, control system.The optical system taked is by multiple optical system units, machinery Mobile platform builds, can be with arbitrary extension or the coverage of reduction optical system.
The basic functional principle of precinct laser fusion rapid molding equipment is: first utilize on computers The 3D sculpting softwares such as Pro/e, UG, CATIA design the three-dimensional entity model of part, then pass through Slice Software carries out slicing delamination to this threedimensional model, obtains the outline data in each cross section, by number of contours Filling scanning pattern according to generating, tile in working cylinder certain thickness powder, according to the control of computer System, laser beam selects according to the slicing treatment result of three-dimensional parts figure by the way of vibration mirror scanning Property ground fusing fore-put powder layer.Working cylinder declines certain distance and again spreads powder subsequently, and laser beam is shaking Under the drive of mirror, 3-D graphic again according to parts completes the manufacture of next layer of parts.So weight Spread degradation operation under powder, scanning and working cylinder again, thus realize the manufacture of three-dimensional parts.
At present, precinct laser fusion rapid molding technology is primarily present following four aspect problems:
The first, precinct laser fusion rapid molding technology needs protective atmosphere or vacuum environment, to avoid The oxidation of metal parts in forming process.This makes precinct laser fusion rapid molding device structure complicated, Forming part size is restricted.
The second, laser spot diameter is little, power is low, and molding heavy parts efficiency is low.
3rd, in order to ensure part mechanical property, precinct laser fusion rapid molding technology needs flowing The globular metallic powder that property is good.This makes the material cost of precinct laser fusion rapid molding technology the highest.
4th, laser instrument is the core parts of precinct laser fusion rapid molding equipment.Laser instrument price Height and maintenance cost are high.This makes the equipment cost of precinct laser fusion rapid molding technology the highest.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that one Kind of constituency plasma fusing rapid forming equipment, its simple in construction, reasonable in design and use easy and simple to handle, Shaping efficiency is high, using effect is good, it is not necessary to airtight forming room, and need not protective atmosphere or vacuum Environment, Workpiece shaping process is directly carried out under atmospheric environment.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the plasma fusing of a kind of constituency Rapid forming equipment, it is characterised in that: by monitoring system, plasma beam system of processing, supply to treat into Type workpiece place and the horizontal stamp pad that can move up and down and be arranged on horizontal stamp pad send paving powder Device forms;
Described plasma beam system of processing includes multiple plasma beam processing unit (plant), multiple described etc. The structure of ion beam current processing unit (plant) is the most identical;
Each described plasma beam processing unit (plant) is by being provided with shower nozzle and for producing beam-plasma Plasma generator, the print position that is adjusted the position of described plasma generator adjusts Engagement positions and for described plasma generator provide working gas feeder composition, described grade from Daughter generator is positioned at above horizontal stamp pad;Described feeder is by air supply pipe and described plasma The air inlet opened on body generator connects;Described print position adjusting apparatus include driving described grade from The horizontally moving device that daughter generator moves in the horizontal plane and the described plasma of drive are sent out Outlet and level that raw device with described horizontally moving device synchronizing moving and tackles described shower nozzle mutually print The printing distance adjusting means that distance between platform is adjusted, described plasma generator is arranged on Described horizontally moving device, and described horizontally moving device is arranged on described printing distance adjusting means On;
Described powder sending and laying device includes being positioned at above horizontal stamp pad and can move left and right in the horizontal plane Power spreading device and be the dust feeder of power spreading device powder feeding, described dust feeder and power spreading device are all pacified It is contained on horizontal stamp pad;
Described monitoring system includes multiple being monitored described plasma beam processing unit (plant) respectively Plasma beam processing supervising device, the quantity of described plasma beam processing supervising device is with described etc. In ion beam current system of processing, the quantity of included plasma beam processing unit (plant) is identical, multiple described etc. Ion beam current processing supervising device is connected with multiple described plasma beam processing unit (plant)s respectively;Described etc. The structure of ion beam current processing supervising device is the most identical;
Each described plasma beam processing supervising device all includes processing monitored plasma beam Temperature detecting unit that at device print position on workpiece to be formed, temperature detects in real time, right What described horizontally moving device was controlled move horizontally controller, to the outlet of described shower nozzle and level Distance detector unit that distance between stamp pad detects in real time and print distance regulation to described The printing distance regulation controller that device is controlled, described distance detector unit and printing distance regulation Controller connects, described in move horizontally controller and be connected with described horizontally moving device, described printing away from It is connected with described printing distance adjusting means from regulation controller;Described temperature detecting unit with print away from Connect from regulation controller and the two temperature adjusting forming monitored plasma beam processing unit (plant) fills Put.
Above-mentioned a kind of constituency plasma fusing rapid forming equipment, is characterized in that: described plasma is sent out Angle between central axis and the vertical plane of the beam-plasma that raw device produces is not more than 45 °;Described beat Print distance adjusting means is to adjust described shower nozzle up and down along the central axis of described beam-plasma Adjusting apparatus up and down, described distance detector unit be from institute to the central axis along described beam-plasma State the distance detection device that the distance exported between horizontal stamp pad of shower nozzle detects in real time;
Described horizontal stamp pad is the shifting being arranged on stamp pad position regulator and moving up and down Moving platform;
Described monitoring system also includes that the position being controlled described stamp pad position regulator is adjusted Whole controller, described position adjustment controller is connected with described stamp pad position regulator.
Above-mentioned a kind of constituency plasma fusing rapid forming equipment, is characterized in that: described plasma is sent out Raw device includes that plasma gun, described shower nozzle are the anode nozzle of plasma gun front end;Described plasma gun Including having the gun body of described air inlet, being positioned at the anode nozzle of gun body dead ahead and be plugged in gun body Negative electrode, described anode nozzle is positioned on front side of negative electrode, and described arc chamber is positioned on front side of negative electrode and it is positioned at The posterior medial of anode nozzle, the front inner of described anode nozzle is spout;Described anode nozzle, Negative electrode and arc chamber are all laid in coaxial with gun body;Described air inlet is positioned on rear side of gun body, described spout With gun body in coaxial lay or and gun body central axis between angle be 30 °~45 °.
Above-mentioned a kind of constituency plasma fusing rapid forming equipment, is characterized in that: described powder sending and laying device Also include that powder collection device, described dust feeder are fixedly mounted on the side of horizontal stamp pad, described collection powder Device is fixedly mounted on the opposite side of horizontal stamp pad, and described dust feeder and powder collection device are positioned at same On horizontal plane;Described power spreading device is positioned at above dust feeder;
Described dust feeder includes having charging aperture and the shell of powder feeding mouth and being arranged in described shell Powder feeding wheel, described powder feeding wheel is driven by driving motor;
Each described plasma beam processing supervising device the most also includes described plasma generator The gas that the plasma generator controller that is controlled, gas flow to air supply pipe detect in real time Flow detection unit, the gas flow being controlled the flow control valve installed on air supply pipe control Device, power spreading device is spread Thickness sensitivity unit that powder thickness detects in real time and to driving motor to enter The paving powder gage controller that row controls, described plasma generator controller and described plasma generator Connecting, described detection of gas flow rate unit is connected with gas flow controller;Described Thickness sensitivity unit It is connected with paving powder gage controller.
Above-mentioned a kind of constituency plasma fusing rapid forming equipment, is characterized in that: described horizontal stamp pad Including moulding cylinder and the horizontal table that can move up and down in moulding cylinder of the equal opening in top and the bottom, described Moulding cylinder includes that the polylith side shield by being laid in outside horizontal table surrounding surrounds;Described shower nozzle Export the outlet that distance is described shower nozzle and the horizontal table upper surface between horizontal stamp pad it Between distance.
Above-mentioned a kind of constituency plasma fusing rapid forming equipment, is characterized in that: described horizontal stamp pad Quantity be multiple, multiple described horizontal stamp pads be respectively for multiple workpiece to be formed print printing Platform and its be respectively positioned in same level;It is mounted on electric walking bottom each described horizontal stamp pad Walking mechanism, multiple described print platforms are respectively positioned on below described plasma beam system of processing, and multiple It is to be controlled for being positioned at the print platform immediately below described plasma beam system of processing in described print platform Platform processed;
The quantity of described powder sending and laying device is multiple and its quantity is identical with the quantity of horizontal stamp pad, often It is mounted on a described powder sending and laying device on individual described horizontal stamp pad;
Described monitoring system also includes carrying out the electric walking mechanism of multiple described print platforms respectively The traveling controller that controls and multiple respectively the walking position of multiple described print platforms is carried out in real time The walking position detector unit of detection, the described position adjustment controller institute to multiple described print platforms State stamp pad position regulator to be respectively controlled;The electric walking mechanism of multiple described print platforms All it is connected with traveling controller with multiple described walking position detector units, multiple described print platforms Described stamp pad position regulator is all connected with position adjustment controller.
Meanwhile, invention additionally discloses a kind of method step simple, reasonable in design and realize convenient, use Effective constituency plasma fusion rapid molding method, it is characterised in that: the method includes following step Rapid:
Step one, workpiece three-dimensional stereo model to be formed obtain and hierarchy slicing processes: use at data Reason equipment and call image processing module obtain workpiece to be formed three-dimensional stereo model, recall layering Section module is treated as the three-dimensional stereo model of type workpiece and carries out hierarchy slicing, and obtains multiple layering and cut Face image;
Multiple described layering cross-sectional images are to treat the three-dimensional stereo model of shaping workpiece to carry out layering and cut Obtaining the image in multiple layering cross section after sheet, multiple described layering cross sections are the most uniformly laid;Institute The each described layering cross section stating workpiece to be formed is all divided into multiple respectively by multiple described plasmas Beam current machining device carries out the print zone printed;
Step 2, scanning pattern are filled: use data handling equipment and call described image processing module, Described layering cross-sectional images multiple in step one are respectively processed, and complete multiple described layering and cut The scanning pattern filling process in face, it is thus achieved that the scanning pattern in multiple described layering cross sections;
The scanning pattern in each described layering cross section all includes the multiple described printing on this layering cross section The scanning pattern in district;
Step 3, printing path obtain: described data handling equipment is multiple according to obtain in step 2 The scanning pattern in described layering cross section, it is thus achieved that the printing path in multiple described layering cross sections;Each described The printing path in layering cross section is all identical with the scanning pattern in this layering cross section, and each described layering cuts The printing path in face all includes the printing path of the multiple described print zone on this layering cross section;
Step 4, the most successively printing: according to the multiple described layering cross section obtained in step 3 Printing path, the most successively treat shaping workpiece and print, it is thus achieved that by multiple shape layers by Under the finished workpart of supreme stacking;The quantity of described shape layer and layering cross section described in step one Quantity identical, the installation position of multiple described shape layers respectively with the laying in multiple described layering cross sections Position one_to_one corresponding and its thickness are the most identical, and the thickness of described shape layer is cut with adjacent two described layerings Distance between face is identical, and in step 3, the printing path in multiple described layering cross sections is respectively multiple institute State the printing path of shape layer;Treating shaping workpiece when printing, process is as follows:
Step 401, bottom print: according to beating of current institute's printing shaping layer acquired in step 3 Print path, uses described plasma beam system of processing to treat the current institute printing shaping layer of shaping workpiece Print;Use described plasma beam system of processing that current institute printing shaping layer is printed Time, use multiple described plasma beam processing unit (plant) to synchronize the multiple institutes to current institute printing shaping layer State print zone to print respectively;
The Method of printing of multiple described plasma beam processing unit (plant)s is the most identical;
Use any one described plasma beam processing unit (plant) institute to current institute printing shaping layer State print zone when printing, this plasma beam processing unit (plant) move horizontally controller according to step In current institute printing shaping layer acquired in three, the printing path of this print zone, moves horizontally described Device is controlled and drives described plasma generator to move in the horizontal plane;Described grade from In daughter generator moving process, this plasma beam processing unit (plant) by described beam-plasma to level On stamp pad, spread printed material scans continuously, completes the printed of current institute printing shaping layer Journey;
In this step, current institute printing shaping layer is the molding being positioned at bottommost in multiple described shape layer Layer;
Step 402, last layer print, and comprise the following steps:
Step 4021, horizontal stamp pad move down: horizontal stamp pad in the vertical direction is carried out once to Lower movement and move down height the most identical with the thickness of described shape layer;
Step 4022, print and synchronize temperature control: according to current institute printing shaping acquired in step 3 The printing path of layer, uses described plasma beam system of processing to treat currently being printed of shaping workpiece Shape layer prints;Use described plasma beam system of processing that current institute printing shaping layer is carried out During printing, multiple described plasma beam processing unit (plant) is used to synchronize many to current institute printing shaping layer Individual described print zone prints respectively;
The Method of printing of multiple described plasma beam processing unit (plant)s is the most identical;
Use any one described plasma beam processing unit (plant) institute to current institute printing shaping layer State print zone when printing, this plasma beam processing unit (plant) move horizontally controller according to step In current institute printing shaping layer acquired in three, the printing path of this print zone, moves horizontally described Device is controlled and drives described plasma generator to move in the horizontal plane;Described grade from In daughter generator moving process, this plasma beam processing unit (plant) passes through described beam-plasma to currently On the most printed next one described shape layer upper surface, spread printed material scans continuously, completes The print procedure of current institute printing shaping layer;In print procedure, by temperature detecting unit to the most The upper table of this plasma beam processing unit (plant) institute print area in the described shape layer of the printed next one Surface temperature detects in real time and detected temperature information synchronous driving is controlled to printing distance regulation Device;Further, by the outlet to described shower nozzle of the distance detector unit of this plasma beam processing unit (plant) And the distance between horizontal stamp pad detects in real time, and the range information synchronous driving that will be detected To printing distance regulation controller;The described distance regulation controller that prints is examined according to temperature detecting unit The temperature information surveyed and by controlling described printing distance adjusting means to the outlet of described shower nozzle and water Distance between flat stamp pad is adjusted, and making should in the most printed described shape layer of the next one The upper surface temperature of plasma beam processing unit (plant) institute print area is not higher than the material of workpiece to be formed 0.6 times of fusing point;
Step 403, step 402 is repeated several times, until completing beating of all shape layers of workpiece to be formed Print process.
Said method, is characterized in that: before the most successively printing in step 4, institute in step one State data handling equipment first according to the material fusing point pre-build and printing range data storehouse, and combine logical Cross the material name of the printed material of each plasma beam processing unit (plant) that parameter input unit pre-enters Claim, the basis printing distance of each plasma beam processing unit (plant) is determined;The input of described parameter is single First and described data handling equipment connects;
In described material fusing point and printing range data storehouse, storage has the material fusing point of various material and beats Print range information, material fusing point and the printing range information of every kind of described material all include this kind of material Title, fusing point and basis print distance;It is 5mm~1000mm that described basis prints distance, and material Fusing point is the highest, and it is the nearest that basis prints distance;
Step 401 use any one described plasma beam processing unit (plant) to current institute printing shaping layer A described print zone print before, the printing of this plasma beam processing unit (plant) distance regulation Controller is adjusted according to the range information detected apart from detector unit and by controlling the described distance that prints Distance between outlet and the horizontal stamp pad of described shower nozzle is adjusted to described basis and prints by regulating device Distance;Further, step 401 use this plasma beam processing unit (plant) carry out in print procedure, institute Stating the distance between outlet and the horizontal stamp pad of shower nozzle is that described basis prints distance;
Step 4022 use any one described plasma beam processing unit (plant) to current institute printing shaping Before one described print zone of layer prints, the printing distance of this plasma beam processing unit (plant) is adjusted Joint controller according to the range information detected apart from detector unit and combines the downward of horizontal stamp pad Move number of times and move down height every time, and by controlling described printing distance adjusting means by described Distance between outlet and the upper surface of the most printed described shape layer of the next one of shower nozzle is adjusted Joint prints distance for described basis;Step 4022 use this plasma beam processing unit (plant) carry out beating During print, described shower nozzle is exported the distance between horizontal stamp pad when being adjusted, described Print the temperature information detected according to temperature detecting unit apart from regulation controller and combine distance inspection The distance that described shower nozzle is exported between horizontal stamp pad by the range information that survey unit is detected is entered Row regulation, makes this plasma beam processing unit (plant) institute in the most printed described shape layer of the next one The upper surface temperature of print area controls to melt in the material of this plasma beam processing unit (plant) printed material Between 0.1 times~0.6 times of point;Further, described shower nozzle is exported between horizontal stamp pad When distance is adjusted, the amplitude of accommodation is 5mm~60mm, and material fusing point is the highest, and the amplitude of accommodation is more Little.
Said method, is characterized in that: the quantity of described horizontal stamp pad is multiple, multiple described levels Stamp pad is respectively the print platform printed for multiple workpiece to be formed and it is respectively positioned on same level On;Electric walking mechanism, multiple described print platforms it are mounted on bottom each described horizontal stamp pad It is respectively positioned on below described plasma beam system of processing, and multiple described print platform is positioned at described etc. Print platform immediately below ion beam current system of processing is platform to be controlled;
Described monitoring system also includes carrying out the electric walking mechanism of multiple described print platforms respectively The traveling controller that controls and multiple respectively the walking position of multiple described print platforms is carried out in real time The walking position detector unit of detection, the described position adjustment controller institute to multiple described print platforms State stamp pad position regulator to be respectively controlled;The electric walking mechanism of multiple described print platforms All it is connected with traveling controller with multiple described walking position detector units, multiple described print platforms Described stamp pad position regulator is all connected with position adjustment controller;
When step one carries out workpiece three-dimensional stereo model to be formed acquisition and hierarchy slicing process, to many Individual described workpiece to be formed carries out three-dimensional stereo model acquisition respectively and hierarchy slicing processes;Wherein, right When any one described workpiece to be formed carries out three-dimensional stereo model acquisition and hierarchy slicing process, all use Data handling equipment and call image processing module and obtain the three-dimensional stereo model of this workpiece to be formed, then Call hierarchy slicing module and the three-dimensional stereo model of this workpiece to be formed is carried out hierarchy slicing, and obtain Multiple layering cross-sectional images of this workpiece to be formed;
The height of multiple workpiece to be formed is the most identical;3 D stereo mould to multiple described workpiece to be formed When type carries out hierarchy slicing, lift height the most identical and obtained layering cross-sectional image quantity homogeneous With;
When step 2 is scanned path filling, multiple described workpiece to be formed are scanned respectively Path filling processes;Wherein, when workpiece to be formed any one described is scanned path filling process, All use described data handling equipment and call described image processing module, acquisition in step one is somebody's turn to do The multiple described layering cross-sectional image of workpiece to be formed is respectively processed, and completes multiple described layering The scanning pattern filling process in cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
When step 3 carries out printing path acquisition, described data handling equipment is used to obtain respectively multiple The printing path of described workpiece to be formed;Wherein, the print path of any one described workpiece to be formed is obtained During footpath, multiple described all in accordance with this workpiece to be formed obtained in step 2 of described data handling equipment The scanning pattern in layering cross section, it is thus achieved that the print path in the multiple described layering cross section of this workpiece to be formed Footpath, and the printing path in each described layering cross section is all identical with the scanning pattern in this layering cross section;
When step 4 the most successively prints, synchronize to carry out to multiple described workpiece to be formed The most successively print;
Step 401 is carried out when bottom prints and when step 402 carries out last layer printing, all Use described plasma beam system of processing by first to the rear current institute to multiple described workpiece to be formed Printing shaping layer prints respectively;Treat that the current institute printing shaping layer of multiple described workpiece to be formed is equal After printing completes, a upper shape layer of multiple described workpiece to be formed is printed respectively;
Wherein, current to workpiece to be formed any one described of described plasma beam system of processing is used When institute's printing shaping layer prints, first pass through electronic to multiple described print platforms of traveling controller Walking mechanism is respectively controlled, and is moved to by the described print platform printed for this workpiece to be formed described The underface of plasma beam system of processing;Now, be positioned at described plasma beam system of processing just under The described print platform of side is platform to be controlled;Afterwards, then use described plasma beam system of processing The current institute printing shaping layer of this workpiece to be formed is printed.
Said method, is characterized in that: described dust feeder includes the shell having charging aperture with powder feeding mouth With the powder feeding wheel being arranged in described shell, described powder feeding wheel is driven by driving motor;
Each described plasma beam processing supervising device the most also includes described plasma generator The gas that the plasma generator controller that is controlled, gas flow to air supply pipe detect in real time Flow detection unit, the gas flow being controlled the flow control valve installed on air supply pipe control Device, power spreading device is spread Thickness sensitivity unit that powder thickness detects in real time and to driving motor to enter The paving powder gage controller that row controls, described Thickness sensitivity unit is connected with paving powder gage controller, institute State plasma generator controller to be connected with described plasma generator, described detection of gas flow rate unit It is connected with gas flow controller;Described distance detector unit is connected with gas flow controller;
In step 4 the most successively print before, data handling equipment elder generation described in step one according to The gas flow data storehouse pre-build, and combine the thickness of described shape layer set in advance, to confession The base gas flow of trachea is determined;
Described gas flow data storehouse internal memory contains the basic gas needed for the shape layer of multiple different thickness Body flow;Described base gas flow is 5ml/min~500ml/min, and the thickness of described shape layer The thickest, described base gas flow is the biggest;
Before in step 401, any one described plasma beam processing unit (plant) prints, described gas Flow controller is incited somebody to action according to the detected information of detection of gas flow rate unit and by controlling flow control valve The gas flow of air supply pipe is adjusted to described base gas flow;In step 401 any one described grade from In sub-beam current machining device print procedure, the gas flow of described air supply pipe is described base gas stream Amount;
In step 4022, any one described plasma beam processing unit (plant) carries out printing and synchronizing temperature control Cheng Zhong, described gas flow controller is according to the detected information of detection of gas flow rate unit and combines distance Detector unit institute detecting distance information, and by controlling flow control valve, the gas flow of air supply pipe is entered Row increase and decrease adjusts;Further, the distance between outlet and the horizontal stamp pad of described shower nozzle is the biggest, described The gas flow of air supply pipe is the biggest.
The present invention compared with prior art has the advantage that
1, the constituency plasma fusing rapid forming equipment simple in construction used, reasonable in design and throwing Enter that cost is relatively low, that processing and fabricating and installing is laid is convenient.
2, the constituency plasma fusing rapid forming equipment used is not without airtight forming room, and not Protective atmosphere or vacuum environment, Workpiece shaping process is needed directly to carry out under atmospheric environment.Thus, Structure is very simple, and forming part size is unrestricted, and equipment price is relatively low.
3, the moulding cylinder system that need not spread powder need not spread powder system, and structure significantly simplifies.
4, the constituency plasma fusing rapid forming equipment used uses journey easy and simple to handle, intelligent Spending and shaping efficiency is high, using effect is good, the quality of institute's shaping workpiece is high.The monitoring system used Including the position adjustment controller that stamp pad position regulator is controlled, treat on shaping workpiece Temperature detecting unit that surface temperature detects in real time, between outlet and the horizontal stamp pad of shower nozzle The distance detector unit that detects in real time of distance and to printing what distance adjusting means was controlled Printing distance regulation controller, position adjustment controller is connected with stamp pad position regulator, prints Distance regulation controller is connected with printing distance adjusting means, temperature detecting unit and distance detector unit All it is connected apart from regulation controller with printing;Temperature detecting unit forms with printing distance regulation controller Temperature control device.Printing distance regulation controller during actually used, in temperature regulation system According to the detected information of temperature detecting unit to print distance adjusting means be controlled so that print away from From energy Automatic adjusument, so can prevent because printing hypotelorism causes the shape layer printed The problem that fusing occurs again, and also can prevent because printing the formed precision that causes of hypertelorism relatively low etc. Problem so that forming process is easily controllable, and realize conveniently, effectively preventing surface of the work from sending out simultaneously Raw oxidation, thus without arranging airtight vacuum environment.It addition, the monitoring system used also includes Gas flow Automatic adjusument and paving powder thickness Automatic adjusument function, intelligence degree is high.
5, the energy source that constituency plasma fusing rapid forming equipment uses is beam-plasma, plasma Beam power, up to tens of kilowatt, can melt metal, pottery, resin and other composite, and can be complete Become the fusing of various form material, it is achieved the rapid shaping of above-mentioned material part.Produce beam-plasma Plasma generator (specifically plasma gun) simple in construction, operation expense is low, constituency etc. from Sub-fusion rapid molding equipment cost is low.
6, beam-plasma itself has protective effect, adds the effect of working gas, can be the most anti- The only oxidation of printed material, this equipment need not protective atmosphere or vacuum environment, directly in atmospheric environment Lower use, has the advantages such as device structure is simple, operating cost is low, forming part size is unrestricted.
7, dust feeder uses direct current generator to drive powder wheel rotation to deliver in power spreading device by powder, can Use a powder or prilling powder, it is not necessary to spherical powder;This equipment printed material low cost.And And, by powder collection device, excessive powder is collected in time, save material cost further.
8, the plasma beam system of processing used includes multiple plasma beam processing unit (plant), and And it is correspondingly arranged multiple plasma beam processing supervising device, by multiple plasma beam processing unit (plant)s Workpiece is carried out synchronous processing, the shaping efficiency of workpiece can be effectively improved.It is particularly suited for large scale work Part, the forming process of the workpiece being made up of multiple different materials.Multiple plasma beam processing unit (plant)s Printed material can be the most identical, it is also possible to all differs, and uses mode of operation the most flexible.
9, the quantity of used print platform is one or more.When the quantity of print platform is multiple Time, use easy and simple to handle, intelligence degree is high and using effect good, can synchronously complete multiple workpiece 3D print procedure, production efficiency is greatly improved, and multiple print platform is alternately moved by travelling control Moving to print area (i.e. the underface of plasma beam system of processing), the process that controls is simple, realization Facilitate, and the Forming Quality of multiple workpiece can be effectively controlled.Multiple workpiece to be formed both can be The identical workpiece that structure is the most identical with size, it is also possible to be structure all differ from size multiple different Workpiece, occupation mode is very flexible, is particularly suited for high-volume work pieces process.
10, the constituency plasma fusion rapid molding method step used is simple, reasonable in design and real Now convenient, using effect is good, plasma gun simple in construction, beam-plasma has protective effect, is not required to Wanting protective atmosphere or vacuum environment, directly print under atmospheric environment, technical process simplifies, fall Technology difficulty that low 3D prints and cost, and it is the most size-limited to print part.By above-mentioned Content understand, traditional plasma surfacing method is substantially improved by the present invention, existing grade from Sub-overlaying method is generally individually provided with the distance of plasma arc voltage Height-adjusting device, plasma gun and surface of the work Being not more than 15mm, the scope of application is limited.And in the present invention, print distance can on a large scale in adjust Joint, adapts to unlike material and prints demand, and Workpiece shaping quality can be effectively ensured.To sum up, this The bright technology difficulty effectively reducing metal, pottery, resin and other composite material work piece rapid shaping And cost, make the large-scale application of rapid shaping be possibly realized.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of constituency of the present invention plasma fusing fast equipment.
Fig. 2 is the structural representation of plasma gun in the embodiment of the present invention 1.
Fig. 3 is the schematic block circuit diagram of monitoring system of the present invention.
Fig. 4 is the structural representation of air inlet ring of the present invention.
Fig. 5 is the structural representation of air inlet ring body of the present invention.
Fig. 6 is the FB(flow block) of constituency of the present invention plasma fusing fast method.
Fig. 7 is the structural representation of plasma gun in the embodiment of the present invention 2.
Description of reference numerals:
1 feeder;2 power spreading devices;3 workpiece to be formed;
4 horizontal stamp pads;4-1 horizontal table;4-2 moulding cylinder;
5 air supply pipes;6 flow control valves;
7 plasma generator controllers;8 distance detector units;9 temperature detecting units;
10 print distance regulation controller;11 detection of gas flow rate unit;
12 gas flow controllers;13 plasma guns;13-1 gun body;
13-2 anode nozzle;13-3 negative electrode;13-4 arc chamber;
13-5 spout;13-6 insulating barrier;14 dust feeders;
15 position adjustment controllers;16 three axis numerically controlled machines;About 17 adjusting apparatus;
18 Thickness sensitivity unit;19 drive motor;20 paving powder gage controllers;
21 air inlet rings;21-1 air inlet ring body;21-2 annular sealing cover;
21-3 annular air inlet duct;Air inlet outside 21-4;Air inlet inside 21-5;
22 powder collection devices;23 PCs;24 move horizontally controller;
24-1 X-axis travel mechanism;24-2 Y-axis moving mechanism;
25 electric walking mechanisms;26 traveling controllers;
27 walking position detector units;28 line slideways;
29 plasma beam processing supervising devices.
Detailed description of the invention
A kind of constituency plasma fusing rapid forming equipment as shown in Figure 1, by monitoring system, etc. from Sub-line system of processing, the horizontal stamp pad 4 placed for workpiece 3 to be formed and can move up and down and peace The powder sending and laying device composition being contained on horizontal stamp pad 4.
Described plasma beam system of processing includes multiple plasma beam processing unit (plant), multiple described etc. The structure of ion beam current processing unit (plant) is the most identical.
Each described plasma beam processing unit (plant) is by being provided with shower nozzle and for producing beam-plasma Plasma generator, the print position that is adjusted the position of described plasma generator adjusts Engagement positions and the feeder 1 for described plasma generator offer working gas form, described etc. Plasma generator is positioned at above horizontal stamp pad 4;Described feeder 1 is by air supply pipe 5 and institute State the air inlet opened on plasma generator to connect;Described print position adjusting apparatus includes driving The horizontally moving device that described plasma generator moves in the horizontal plane is described with drive Plasma generator and described horizontally moving device synchronizing moving and tackle mutually the outlet of described shower nozzle with The printing distance adjusting means that distance between horizontal stamp pad 4 is adjusted, described plasma is sent out Raw device is arranged on described horizontally moving device, and described horizontally moving device is arranged on described printing distance In adjusting means.
Described powder sending and laying device includes being positioned at above horizontal stamp pad 4 and moving left and right in the horizontal plane Power spreading device 2 and be the dust feeder 14 of power spreading device 2 powder feeding, described dust feeder 14 and paving Powder device 2 is installed on horizontal stamp pad 4.
As it is shown on figure 3, described monitoring system includes multiple respectively to described plasma beam processing unit (plant) The plasma beam processing supervising device 29 being monitored, described plasma beam processing supervising device The quantity of 29 is the number of included plasma beam processing unit (plant) with described plasma beam system of processing Measure identical, multiple described plasma beams processing supervising device 29 respectively with multiple described beam-plasmas Stream processing unit (plant) connects;The structure of described plasma beam processing supervising device 29 is the most identical.
Each described plasma beam processing supervising device 29 all includes adding monitored plasma beam Frock puts the temperature detecting unit that at the print position on workpiece 3 to be formed, temperature detects in real time 9, be controlled described horizontally moving device moves horizontally controller 24, goes out described shower nozzle Mouthful and horizontal stamp pad 4 between the distance detector unit 8 that detects in real time of distance and beat described The printing distance regulation controller 10 that print distance adjusting means is controlled, described distance detector unit 8 Be connected with printing distance regulation controller 10, described in move horizontally controller 24 and move horizontally with described Device connects, and the described distance regulation controller 10 that prints is connected with described printing distance adjusting means; Described temperature detecting unit 9 is connected with printing distance regulation controller 10 and the two composition is monitored The temperature control device of ion beam current processing unit (plant).
In the present embodiment, described temperature detecting unit 9 is for treat described plasma beam system of processing The infrared temperature sensor that at print position on shaping workpiece 3, temperature detects in real time.Described away from It is laser range sensor from detector unit 8.
In the present embodiment, described horizontally moving device includes driving described plasma generator in X-axis Carry out the X-axis travel mechanism 24-1 that moves horizontally on direction and drive described plasma generator at Y Carry out Y-axis moving mechanism 24-2 moved horizontally on direction of principal axis, thus described horizontally moving device is X-Y shaft moving device.
Further, described plasma generator is arranged in Y-axis moving mechanism 24-2, described Y-axis Travel mechanism 24-2 is arranged on X-axis travel mechanism 24-1, and described X-axis travel mechanism 24-1 pacifies It is contained in described printing distance adjusting means.During actually used, by Y-axis moving mechanism 24-2 Described plasma generator is driven to move horizontally in the Y-axis direction, by X-axis travel mechanism 24-1 drives that Y-axis moving mechanism 24-2 is Tong Bu with described plasma generator enters in the X-axis direction Row moves horizontally, and drives described horizontally moving device and institute by described printing distance adjusting means State plasma generator to synchronize to move on the central axis of described beam-plasma.
In the present embodiment, described Y-axis moving mechanism 24-2, X-axis travel mechanism 24-1 and described beat Print distance adjusting means composition drives described plasma generator (specifically plasma gun 13) to carry out The mechanical hand of three-dimensional motion.
In the present embodiment, described monitoring system also includes being controlled described plasma generator The gas flow inspection that plasma generator controller 7, gas flow to air supply pipe 5 detect in real time Survey unit 11 and the gas flow being controlled the flow control valve 6 installed on air supply pipe 5 controls Device 12, described plasma generator controller 7 is connected with described plasma generator, described gas stream Amount detection unit 11 is connected with gas flow controller 12.
As in figure 2 it is shown, each described plasma beam processing supervising device 29 the most also includes described The plasma generator controller 7 that plasma generator is controlled, the gas flow to air supply pipe 5 The detection of gas flow rate unit 11 that detects in real time and to the flow control valve 6 installed on air supply pipe 5 The gas flow controller 12 being controlled, described plasma generator controller 7 and described plasma Generator connects, and described detection of gas flow rate unit 11 is connected with gas flow controller 12.
As in figure 2 it is shown, described plasma generator includes plasma gun 13, described shower nozzle for wait from The anode nozzle 13-2 of sub-rifle 13 front end;Described plasma gun 13 includes the rifle having described air inlet Body 13-1, it is positioned at the anode nozzle 13-2 of gun body 13-1 dead ahead and is plugged in gun body 13-1 Negative electrode 13-3, described anode nozzle 13-2 are positioned on front side of negative electrode 13-3, described arc chamber 13-4 position On front side of negative electrode 13-3 and it is positioned at the posterior medial of anode nozzle 13-2, described anode nozzle 13-2 Front inner be spout 13-5;Described anode nozzle 13-2, negative electrode 13-3 and arc chamber 13-4 All lay in coaxial with gun body 13-1;Described air inlet is positioned on rear side of gun body 13-1, described spout 13-5 With gun body 13-1 in coaxial lay or and described gun body 13-1 central axis between angle be 30 °~ 45°。
Time actually used, described plasma gun 13 is arranged in Y-axis moving mechanism 24-2.
Time actually used, described plasma gun 13 can also use other plasma gun of routine.
In the present embodiment, between described anode nozzle 13-2 and gun body 13-1, it is provided with insulating barrier 13-6.
In the present embodiment, as in figure 2 it is shown, described spout 13-5 lays in coaxial with gun body 13-1.
In the present embodiment, described air supply pipe 5 is by air inlet ring 21 and described plasma generator The air inlet opened connects.Further, by air inlet ring 21 in described plasma generator uniformly Supply.
As shown in Figure 4, Figure 5, described air inlet ring 21 for annular and it include air inlet ring body 21-1 It is contained in the annular sealing cover 21-2 on air inlet ring body 21-1, described air inlet ring body 21-1 with lid For having an annular air inlet duct 21-3 on annular and its medial wall, described air inlet ring body 21-1 On have an outside air inlet 21-4 connected with air supply pipe 5 and its inside have multiple inner side and enter Pore 21-5, multiple described inner side air inlet 21-5 the most uniformly lay and it is respectively positioned on ring Inside shape air inlet duct 21-3, described outside air inlet 21-4 is positioned at outside annular air inlet duct 21-3, Described outside air inlet 21-4 and multiple described inner side air inlet 21-5 all with annular air inlet duct 21-3 Inside communicates.
Further, described gun body 13-1 along the circumferential direction has multiple enter with multiple described inner sides respectively The gun body air inlet that pore 21-5 communicates.
During plasma gun 13 as shown in Figure 2 uses, produce in described arc chamber 13-4 wait from Daughter, produced plasma forms beam-plasma and sprays through spout 13-5.
The powder that described dust feeder 14 is sent is workpiece 3 material therefor (i.e. printed material) to be formed Powder, to the shape of powder without particular/special requirement.
In the present embodiment, described working gas is noble gas or H2Gas.
Wherein, noble gas is Ar gas, He gas and N2Gas.
In the present embodiment, described horizontal stamp pad 4 is for being arranged on stamp pad position regulator and energy The mobile platform moved up and down.
Described monitoring system also includes that the position being controlled described stamp pad position regulator is adjusted Whole controller 15, described position adjustment controller 15 is connected with described stamp pad position regulator.
In the present embodiment, described stamp pad position regulator is three axis numerically controlled machine 16.
Further, described position adjustment controller 15 is the controller of three axis numerically controlled machine 16.
Time actually used, described stamp pad position regulator can also use other can complete X, Y The vertically movable dress moved up and down with device or the energy in the vertical direction of three direction motions of Z axis Put.
During actually used, described horizontal stamp pad 4 can also use position fixed fixing Platform.
In the present embodiment, described powder sending and laying device also includes powder collection device 22, described dust feeder 14 Being fixedly mounted on the side of horizontal stamp pad 4, described powder collection device 22 is fixedly mounted on level and prints The opposite side of platform 4, described dust feeder 14 and powder collection device 22 are positioned in same level;Described Power spreading device 2 is positioned at above dust feeder 14.
During actually used, described plasma generator produce beam-plasma central axis with Angle between vertical plane is not more than 45 °;Described printing distance adjusting means is along described beam-plasma Central axis adjusting apparatus 17 up and down that described shower nozzle is adjusted up and down, described distance detection is single Unit 8 be to along described beam-plasma central axis from described shower nozzle export to horizontal stamp pad 4 it Between the distance detection device that detects in real time of distance.
In the present embodiment, described upper and lower adjusting apparatus 17 is Z-direction adjusting apparatus.
Further, described upper and lower adjusting apparatus 17 is telescopic hydraulic cylinder.
In the present embodiment, the central axis of the beam-plasma that described plasma generator produces is in vertically To laying.Time actually used, can according to specific needs, described plasma generator is produced etc. Angle between central axis and the vertical plane of ion beam adjusts accordingly.
In the present embodiment, described horizontal stamp pad 4 includes moulding cylinder 4-2 and the energy of the equal opening in top and the bottom The horizontal table 4-1 moved up and down in moulding cylinder 4-2, described moulding cylinder 4-2 include by laying Polylith side shield outside horizontal table 4-1 surrounding surrounds;The outlet of described shower nozzle is beaten with level Distance between ink pad 4 be between the outlet of described shower nozzle and horizontal table 4-1 upper surface away from From.
Further, described moulding cylinder 4-2 be rectangle and its by four pieces all in vertically to the side shield group laid Become.Time actually used, described moulding cylinder 4-2 can also be other shape, as circle, pentagon, Hexagon etc..
Time actually used, the purpose arranging moulding cylinder 4-2 is only that being easy to excessive powder collects and send Powder device 14, power spreading device 2 and the installation of powder collection device 22.In the present embodiment, described powder feeding fills Put 14 and powder collection device 22 be separately mounted on the lateral wall, the left and right sides of moulding cylinder 4-2, described paving Powder device 2 is arranged on moulding cylinder 4-2.
In the present embodiment, described dust feeder 14 includes having charging aperture and the shell of powder feeding mouth and peace Being contained in the powder feeding wheel in described shell, described powder feeding wheel is driven by driving motor 19;
Each described plasma beam processing supervising device 29 the most also includes the paving powder to power spreading device 2 Thickness sensitivity unit 18 and the paving powder being controlled driving motor 19 that thickness detects in real time are thick Degree controller 20, described Thickness sensitivity unit 18 is connected with paving powder gage controller 20.
In the present embodiment, described driving motor 19 is direct current generator.During actually used, pass through Change the rotating speed of described direct current generator, the paving powder thickness of power spreading device 2 is carried out simplicity, quickly adjusts.
Time actually used, the quantity of described horizontal stamp pad 4 is one or more.
In the present embodiment, the quantity of described horizontal stamp pad 4 is multiple, multiple described horizontal stamp pads 4 be respectively for multiple workpiece 3 to be formed print print platforms and its be respectively positioned in same level; It is mounted on electric walking mechanism 25, multiple described print platforms bottom each described horizontal stamp pad 4 It is respectively positioned on below described plasma beam system of processing, and multiple described print platform is positioned at described etc. Print platform immediately below ion beam current system of processing is platform to be controlled.
The quantity of described powder sending and laying device is multiple and its quantity is identical with the quantity of horizontal stamp pad 4, It is mounted on a described powder sending and laying device on each described horizontal stamp pad 4;
As it is shown on figure 3, described monitoring system also includes the electric walking machine to multiple described print platforms Traveling controller 26 that structure 25 is respectively controlled and multiple row to multiple described print platforms respectively Walking the walking position detector unit 27 detected in real time position, described position adjustment controller 15 is right The described stamp pad position regulator of multiple described print platforms is respectively controlled;Beat described in multiple Print the electric walking mechanism 25 of platform and multiple described walking position detector unit 27 is equal and travelling control Device 26 connects, and the described stamp pad position regulator of multiple described print platforms is all and position adjustment Controller 15 connects.
Meanwhile, constituency of the present invention plasma fusing rapid forming equipment also includes that a confession is multiple The walking track of electric walking mechanism 25 walking of described print platform, multiple described print platforms Electric walking mechanism 25 is respectively positioned on described walking track, and described electric walking mechanism 25 is for driving institute State the walking mechanism that print platform carries out moving forward and backward along described walking track;Multiple described print platforms Horizontal stamp pad 4 lay from front to back along the length direction of described walking track.
In the present embodiment, described walking track is the line slideway 28 laid in level.Time actually used, Described walking track can also use other type of track or chute.Further, multiple described print platforms Horizontal stamp pad 4 be all laid on same straight line.
Time actually used, described walking track can also use arc, circle, ellipse, fold-line-shaped, The tracks such as square shape.
In the present embodiment, the structure of multiple described print platforms is the most identical with size.
Further, the electric walking mechanism 25 of each described print platform all includes described in multiple being arranged on The electric walking travelling wheel moved forward and backward bottom stamp pad position regulator and is carried out along described walking track.
In the present embodiment, the described stamp pad position regulator of multiple described print platforms is three axles Digit Control Machine Tool 16.
In the present embodiment, the quantity of described print platform is two.
Time actually used, can according to specific needs the quantity of described print platform be adjusted accordingly.
In the present embodiment, described monitoring system also includes multiple water to multiple described print platforms respectively The stamp pad displacement monitor that the displacement of flat stamp pad 4 is monitored, each described stamp pad position Monitoring device all includes carrying out the displacement in X-axis, Y-axis and Z-direction of the horizontal stamp pad 4 respectively First displacement detecting unit, the second displacement detecting unit and the triple motion detector unit of detection, institute in real time State the first displacement detecting unit, the second displacement detecting unit and triple motion detector unit all and position adjustment Controller 15 connects.
During physical cabling, multiple described plasma beams processing supervising device 29 all with described data at Reason equipment connects.For plasma beam processing supervising device 29 any one described, described etc. Ion generation controller 7, gas flow controller 12, position adjustment controller 15, printing distance are adjusted Joint controller 10, paving powder gage controller 20 and move horizontally controller 24 all with described data process Equipment connects, and described data handling equipment is PC 23.Described feeder 1 is entered by PC 23 Row on off control.
Further, multiple described plasma beam processing unit (plant)s can share a feeder 1, it is possible to To be respectively adopted a described feeder 1.
In the present embodiment, each described plasma beam processing unit (plant) the most also includes moving Y-axis respectively Mechanism 24-2 horizontal displacement in the Y-axis direction, to X-axis travel mechanism 24-1 in the X-axis direction Horizontal displacement and the horizontal displacement in the Z-axis direction of upper and lower adjusting apparatus 17 detected in real time 4th displacement detecting unit, the 5th displacement detecting unit and the 6th displacement detecting unit, described 4th displacement Detector unit, the 5th displacement detecting unit and the 6th displacement detecting unit all with move horizontally controller 24 Connect.
A kind of constituency plasma fusion rapid molding method as shown in Figure 6, comprises the following steps:
Step one, workpiece three-dimensional stereo model to be formed obtain and hierarchy slicing processes: use at data Reason equipment and call image processing module and obtain the three-dimensional stereo model of workpiece 3 to be formed, recalls point Layer section module is treated as the three-dimensional stereo model of type workpiece 3 and carries out hierarchy slicing, and obtains multiple points Layer cross section image;
Multiple described layering cross-sectional images are to treat the three-dimensional stereo model of shaping workpiece 3 to carry out layering and cut Obtaining the image in multiple layering cross section after sheet, multiple described layering cross sections are the most uniformly laid;Institute The each described layering cross section stating workpiece 3 to be formed is all divided into multiple respectively by multiple described plasmas Beam current machining device carries out the print zone printed;
Step 2, scanning pattern are filled: use data handling equipment and call described image processing module, Described layering cross-sectional images multiple in step one are respectively processed, and complete multiple described layering and cut The scanning pattern filling process in face, it is thus achieved that the scanning pattern in multiple described layering cross sections;
The scanning pattern in each described layering cross section all includes the multiple described printing on this layering cross section The scanning pattern in district;
Step 3, printing path obtain: described data handling equipment is multiple according to obtain in step 2 The scanning pattern in described layering cross section, it is thus achieved that the printing path in multiple described layering cross sections;Each described The printing path in layering cross section is all identical with the scanning pattern in this layering cross section, and each described layering cuts The printing path in face all includes the printing path of the multiple described print zone on this layering cross section;
Step 4, the most successively printing: according to the multiple described layering cross section obtained in step 3 Printing path, the most successively treat shaping workpiece 3 and print, it is thus achieved that by multiple shape layers The finished workpart stacked from the bottom to top;The quantity of described shape layer is cut with layering described in step one The quantity in face is identical, the installation position of multiple described shape layers respectively with the cloth in multiple described layering cross sections If position one_to_one corresponding and its thickness are the most identical, the thickness of described shape layer and adjacent two described layerings Distance between cross section is identical, and in step 3, the printing path in multiple described layering cross sections is the most multiple The printing path of described shape layer;Treating shaping workpiece 3 when printing, process is as follows:
Step 401, bottom print: according to beating of current institute's printing shaping layer acquired in step 3 Print path, uses described plasma beam system of processing to treat the current institute printing shaping of shaping workpiece 3 Layer prints;Use described plasma beam system of processing that current institute printing shaping layer is printed Time, use multiple described plasma beam processing unit (plant) to synchronize the multiple institutes to current institute printing shaping layer State print zone to print respectively;
The Method of printing of multiple described plasma beam processing unit (plant)s is the most identical;
Use any one described plasma beam processing unit (plant) institute to current institute printing shaping layer State print zone when printing, this plasma beam processing unit (plant) move horizontally controller 24 basis The printing path of this print zone in current institute printing shaping layer acquired in step 3, to described level Mobile device is controlled and drives described plasma generator to move in the horizontal plane;Described In plasma generator moving process, this plasma beam processing unit (plant) passes through described beam-plasma pair On horizontal stamp pad 4, spread printed material scans continuously, completes beating of current institute's printing shaping layer Print process;
In this step, current institute printing shaping layer is the molding being positioned at bottommost in multiple described shape layer Layer;
Step 402, last layer print, and comprise the following steps:
Step 4021, horizontal stamp pad move down: carried out once by horizontal stamp pad 4 in the vertical direction Move down and move down height identical with the thickness of described shape layer;
Step 4022, print and synchronize temperature control: according to current institute printing shaping acquired in step 3 The printing path of layer, uses described plasma beam system of processing to treat the current of shaping workpiece 3 and is beaten Print shape layer prints;Use described plasma beam system of processing that current institute printing shaping layer is entered When row prints, multiple described plasma beam processing unit (plant) is used to synchronize current institute printing shaping layer Multiple described print zones print respectively;
The Method of printing of multiple described plasma beam processing unit (plant)s is the most identical;
Use any one described plasma beam processing unit (plant) institute to current institute printing shaping layer State print zone when printing, this plasma beam processing unit (plant) move horizontally controller 24 basis The printing path of this print zone in current institute printing shaping layer acquired in step 3, to described level Mobile device is controlled and drives described plasma generator to move in the horizontal plane;Described In plasma generator moving process, this plasma beam processing unit (plant) passes through described beam-plasma pair On the most printed current next one described shape layer upper surface, spread printed material scans continuously, Complete the print procedure of current institute printing shaping layer;In print procedure, right by temperature detecting unit 9 This plasma beam processing unit (plant) institute print area in the most printed current described shape layer of the next one Upper surface temperature detect in real time and by detected temperature information synchronous driving to print distance adjust Joint controller 10;Further, by the distance detector unit 8 of this plasma beam processing unit (plant) to described Distance between outlet and the horizontal stamp pad 4 of shower nozzle detects in real time, and the distance that will be detected Synchronizing information is sent to print distance regulation controller 10;The described distance that prints regulates controller 10 The temperature information that detected according to temperature detecting unit 9 and by controlling described printing distance adjusting means pair Distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted, and makes the most printed In next described shape layer, the upper surface temperature of this plasma beam processing unit (plant) institute print area is not Higher than the material fusing point of workpiece 3 to be formed 0.6 times;Further, any one described beam-plasma is used Before current institute printing shaping layer is printed by stream processing unit (plant), power spreading device 2 is first used first to tile One layer of described printed material, described printed material is dusty material (i.e. powder);
Step 403, step 402 is repeated several times, until completing all shape layers of workpiece 3 to be formed Print procedure.
In the present embodiment, before step 4 the most successively prints, described in step one at data Reason equipment is first according to the material fusing point pre-build and printing range data storehouse, and combines by parameter defeated Enter the Material Name of the printed material of each plasma beam processing unit (plant) that unit pre-enters, to each etc. The basis of ion beam current processing unit (plant) prints distance and is determined;Described parameter input unit and described number Connect according to processing equipment;
In described material fusing point and printing range data storehouse, storage has the material fusing point of various material and beats Print range information, material fusing point and the printing range information of every kind of described material all include this kind of material Title, fusing point and basis print distance;It is 5mm~1000mm that described basis prints distance, and material Fusing point is the highest, and it is the nearest that basis prints distance;
Step 401 use any one described plasma beam processing unit (plant) to current institute printing shaping layer A described print zone print before, the printing of this plasma beam processing unit (plant) distance regulation Controller 10 according to the distance range information that detected of detector unit 8 and by control described printing away from From adjusting means, the distance between outlet and the horizontal stamp pad 4 of described shower nozzle is adjusted to described basis Print distance;Further, step 401 use this plasma beam processing unit (plant) carry out in print procedure, Distance between outlet and the horizontal stamp pad 4 of described shower nozzle is that described basis prints distance;
Step 4022 use any one described plasma beam processing unit (plant) to current institute printing shaping Before one described print zone of layer prints, the printing distance of this plasma beam processing unit (plant) is adjusted Joint controller 10 according to the range information detected apart from detector unit 8 and combines horizontal stamp pad 4 Move down number of times and move down height every time, and by controlling described printing distance adjusting means By between outlet and the upper surface of the most printed described shape layer of the next one of described shower nozzle Distance is adjusted to described basis and prints distance;Step 4022 uses this plasma beam processing unit (plant) Carrying out in print procedure, the distance exported described shower nozzle between horizontal stamp pad 4 is adjusted Time, the temperature information that described printing distance regulation controller 10 is detected according to temperature detecting unit 9 And combine the distance range information that detected of detector unit 8 to the outlet of described shower nozzle and horizontal stamp pad Distance between 4 is adjusted, and makes this plasma in the most printed described shape layer of the next one The upper surface temperature of beam current machining device institute print area controls to beat at this plasma beam processing unit (plant) Between 0.1 times~0.6 times of the material fusing point of printed material material;Further, outlet and the water to described shower nozzle When distance between flat stamp pad 4 is adjusted, the amplitude of accommodation is 5mm~60mm, and material fusing point The highest, the amplitude of accommodation is the least.
In the present embodiment, before step 4 the most successively prints, described in step one at data Reason equipment is first according to the gas flow data storehouse pre-build, and combines described shape layer set in advance Thickness, the base gas flow of air supply pipe 5 is determined;
Described gas flow data storehouse internal memory contains the basic gas needed for the shape layer of multiple different thickness Body flow;Described base gas flow is 5ml/min~500ml/min, and the thickness of described shape layer The thickest, described base gas flow is the biggest;
Before in step 401, any one described plasma beam processing unit (plant) prints, described gas Flow controller 12 is according to the detected information of detection of gas flow rate unit 11 and by controlling Flow-rate adjustment The gas flow of air supply pipe 5 is adjusted to described base gas flow by valve 6;In step 401 any one In described plasma beam processing unit (plant) print procedure, the gas flow of described air supply pipe 5 is described base Plinth gas flow;
In step 4022, any one described plasma beam processing unit (plant) carries out printing and synchronizing temperature control Cheng Zhong, described gas flow controller 12 is according to 11 detection information of detection of gas flow rate unit and ties Close distance 8 detecting distance information of detector unit, and by controlling flow control valve 6 to air supply pipe 5 Gas flow carry out increase and decrease adjust;Further, between outlet and the horizontal stamp pad 4 of described shower nozzle Distance is the biggest, and the gas flow of described air supply pipe 5 is the biggest.
In the present embodiment, when obtaining the three-dimensional stereo model of described workpiece to be formed 3, utilize pro/e, The three-dimensional stereo model that the three-dimensional graphics software such as UG, CATIA designs workpiece 3 to be formed is (i.e. three-dimensional Physical model), then by described hierarchy slicing module, this three-dimensional stereo model is carried out hierarchy slicing, And obtain the outline data in each cross section, outline data generate and fill scanning pattern, corresponding obtain described The printing path (printing path in the most each layering cross section) of plasma beam system of processing.Thus, step Rapid one and step 2 employed in method, melt with conventional laser selective melting molding or electron beam constituency The method that chemical conversion type uses is identical.Afterwards, X is carried out in the horizontal plane according to the printing path obtained With in Y direction motor process, power spreading device 2 is first used or currently to beat on horizontal stamp pad 4 One layer of powder of tiling extremely processing that powder is tiled on the upper surface of the described shape layer of the printed next one Level, spreads and excessive powder is recycled to after powder completes powder collection device 22;Subsequently, then by described Spread printed material on horizontal stamp pad 4 is scanned by beam-plasma continuously, completes currently to be printed The print procedure of shape layer;Then, described three axis numerically controlled machine 16 declines in the Z-axis direction, by Layer prints, thus completes the print procedure of 3 d part.
Owing to horizontal stamp pad 4 is the mobile platform being arranged on stamp pad position regulator, thus The printing path in each described layering cross section acquired in step 3 can also be three-axis numerical control machine The machining path of bed 16, the most described plasma beam system of processing is not moved, But be moved in horizontal aspect by horizontal stamp pad 4, thus complete the printed of each shape layer Journey.
In the present embodiment, the quantity of described horizontal stamp pad 4 is multiple;
When step one carries out workpiece three-dimensional stereo model to be formed acquisition and hierarchy slicing process, to many Individual described workpiece 3 to be formed carries out three-dimensional stereo model acquisition respectively and hierarchy slicing processes;Wherein, When workpiece 3 to be formed any one described is carried out three-dimensional stereo model acquisition and hierarchy slicing process, all Use data handling equipment and call image processing module and obtain the 3 D stereo mould of this workpiece 3 to be formed Type, recalls hierarchy slicing module and the three-dimensional stereo model of this workpiece 3 to be formed is carried out hierarchy slicing, And obtain multiple layering cross-sectional images of this workpiece 3 to be formed;
The height of multiple workpiece to be formed 3 is the most identical;The three-dimensional of multiple described workpiece 3 to be formed is stood When body Model carries out hierarchy slicing, lift height the most identical and obtained layering cross-sectional image quantity equal Identical;
When step 2 is scanned path filling, multiple described workpiece 3 to be formed are swept respectively Retouch path filling to process;Wherein, workpiece 3 to be formed any one described is scanned at the filling of path During reason, all use described data handling equipment and call described image processing module, obtaining in step one The multiple described layering cross-sectional image of this workpiece 3 to be formed obtained is respectively processed, and completes multiple The scanning pattern filling process in described layering cross section, it is thus achieved that the scanning pattern in multiple described layering cross sections;
When step 3 carries out printing path acquisition, described data handling equipment is used to obtain respectively multiple The printing path of described workpiece to be formed 3;Wherein, beating of any one described workpiece 3 to be formed is obtained During print path, described data handling equipment is all in accordance with this workpiece more than 3 to be formed obtained in step 2 The scanning pattern in individual described layering cross section, it is thus achieved that the multiple described layering cross section of this workpiece 3 to be formed Printing path, and the printing path in each described layering cross section all with the scanning pattern phase in this layering cross section With;
When step 4 the most successively prints, to multiple described same steppings of workpiece 3 to be formed Row the most successively prints;
Step 401 is carried out when bottom prints and when step 402 carries out last layer printing, all Use described plasma beam system of processing by first to the rear current institute to multiple described workpiece 3 to be formed Printing shaping layer prints respectively;Treat the current institute printing shaping layer of multiple described workpiece 3 to be formed After all having printed, a upper shape layer of multiple described workpiece 3 to be formed is printed respectively;
Wherein, described plasma beam system of processing working as workpiece 3 to be formed any one described is used When front institute printing shaping layer prints, first pass through traveling controller 26 to multiple described print platforms Electric walking mechanism 25 be respectively controlled, the described printing that will print for this workpiece 3 to be formed Platform moves to the underface of described plasma beam system of processing;Now, it is positioned at described plasma beam Described print platform immediately below system of processing is platform to be controlled;Afterwards, then use described plasma The current institute printing shaping layer of this workpiece 3 to be formed is printed by line system of processing.
In the present embodiment, when step 401 and step 4022 print, all according to multiple described The installation position of print platform is from front to back or by rear to front order, to multiple described workpiece to be formed The current institute printing shaping layer of 3 prints respectively.
Further, the described printing that will print for this workpiece 3 to be formed in step 401 and step 4021 When platform moves to the underface of described plasma beam system of processing, all right by traveling controller 26 The electric walking mechanism 25 of multiple described print platforms is respectively controlled, and makes multiple described printing put down Platform all moves along described walking track.
Embodiment 2
In the present embodiment, as it is shown in fig. 7, the constituency plasma fusing rapid forming equipment used with Unlike embodiment 1: the angle between described spout 13-5 and gun body 13-1 central axis is 30 °~45 °.
So, after the direction of described beam-plasma being changed by spout 13-5, can effectively subtract The thermic load impact that anode nozzle 13-2 is produced by few plasma jet, improves anode ablation situation.
In the present embodiment, used constituency plasma fusing rapid forming equipment remainder structure, Annexation and operation principle are the most same as in Example 1.
In the present embodiment, the constituency plasma fusion rapid molding method used is same as in Example 1.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, every Any simple modification, change and equivalent structure above example made according to the technology of the present invention essence Change, all still falls within the protection domain of technical solution of the present invention.

Claims (10)

1. a constituency plasma fusing rapid forming equipment, it is characterised in that: by monitoring system, etc. Ion beam current system of processing, the horizontal stamp pad placed for workpiece to be formed (3) and can move up and down (4) and be arranged on horizontal stamp pad (4) powder sending and laying device composition;
Described plasma beam system of processing includes multiple plasma beam processing unit (plant), multiple described etc. The structure of ion beam current processing unit (plant) is the most identical;
Each described plasma beam processing unit (plant) is by being provided with shower nozzle and for producing beam-plasma Plasma generator, the print position that is adjusted the position of described plasma generator adjusts Engagement positions and feeder (1) composition for described plasma generator offer working gas, institute State plasma generator and be positioned at horizontal stamp pad (4) top;Described feeder (1) is by supplying Trachea (5) is connected with the air inlet opened on described plasma generator;Described print position is adjusted Engagement positions includes driving what described plasma generator moved in the horizontal plane to move horizontally dress Put and drive described plasma generator and described horizontally moving device synchronizing moving and tackle institute mutually State the printing distance regulation dress that the distance between the outlet of shower nozzle and horizontal stamp pad (4) is adjusted Putting, described plasma generator is arranged on described horizontally moving device, and described horizontally moving device It is arranged in described printing distance adjusting means;
Described powder sending and laying device includes being positioned at horizontal stamp pad (4) top and can left and right in the horizontal plane The power spreading device (2) of movement and be the dust feeder (14) of power spreading device (2) powder feeding, described in give Powder device (14) and power spreading device (2) are installed on horizontal stamp pad (4);
Described monitoring system includes multiple being monitored described plasma beam processing unit (plant) respectively Plasma beam processing supervising device (29), described plasma beam processing supervising device (29) Quantity is the quantity phase of included plasma beam processing unit (plant) with described plasma beam system of processing With, multiple described plasma beams processing supervising device (29) respectively with multiple described plasma beams Processing unit (plant) connects;The structure of described plasma beam processing supervising device (29) is the most identical;
Each described plasma beam processing supervising device (29) all includes monitored plasma beam The temperature inspection that at processing unit (plant) print position on workpiece to be formed (3), temperature detects in real time Survey unit (9), described horizontally moving device is controlled move horizontally controller (24), The distance inspection that distance between outlet and the horizontal stamp pad (4) of described shower nozzle is detected in real time Survey unit (8) and the printing distance regulation controller that described printing distance adjusting means is controlled (10), described distance detector unit (8) is connected with printing distance regulation controller (10), institute State and move horizontally controller (24) and be connected with described horizontally moving device, described print distance regulation control Device processed (10) is connected with described printing distance adjusting means;Described temperature detecting unit (9) with beat Print distance regulation controller (10) connects and the temperature of the two monitored plasma beam processing unit (plant) of composition Degree regulation device.
2. according to a kind of constituency plasma fusing rapid forming equipment described in claim 1, its feature It is: the folder between central axis and the vertical plane of the beam-plasma that described plasma generator produces Angle is not more than 45 °;Described printing distance adjusting means is to institute along the central axis of described beam-plasma Stating the adjusting apparatus up and down (17) that shower nozzle adjusts up and down, described distance detector unit (8) is To central axis the exporting between horizontal stamp pad (4) from described shower nozzle along described beam-plasma The distance detection device that detects in real time of distance;
Described horizontal stamp pad (4) is for being arranged on stamp pad position regulator and can move up and down Mobile platform;
Described monitoring system also includes that the position being controlled described stamp pad position regulator is adjusted Whole controller (15), described position adjustment controller (15) and described stamp pad position regulator Connect.
3. according to a kind of constituency plasma fusing rapid forming equipment described in claim 1 or 2, its Being characterised by: described plasma generator includes plasma gun (13), described shower nozzle is plasma The anode nozzle (13-2) of rifle (13) front end;Described plasma gun (13) enters described in including having The gun body (13-1) of QI KOU, it is positioned at the anode nozzle (13-2) of gun body (13-1) dead ahead and inserts The negative electrode (13-3) being loaded in gun body (13-1), described anode nozzle (13-2) is positioned at negative electrode (13-3) Front side, described arc chamber (13-4) is positioned at negative electrode (13-3) front side and it is positioned at anode nozzle (13-2) Posterior medial, the front inner of described anode nozzle (13-2) is spout (13-5);Described sun Pole nozzle (13-2), negative electrode (13-3) and arc chamber (13-4) all with gun body (13-1) in Axle is laid;Described air inlet is positioned at gun body (13-1) rear side, described spout (13-5) and gun body (13-1) In coaxial lay or and gun body (13-1) central axis between angle be 30 °~45 °.
4. according to a kind of constituency plasma fusing rapid forming equipment described in claim 1 or 2, its It is characterised by: described powder sending and laying device also includes powder collection device (22), described dust feeder (14) Being fixedly mounted on the side of horizontal stamp pad (4), described powder collection device (22) is fixedly mounted on water The opposite side of flat stamp pad (4), described dust feeder (14) and powder collection device (22) are positioned at same On one horizontal plane;Described power spreading device (2) is positioned at dust feeder (14) top;
Described dust feeder (14) include having charging aperture and the shell of powder feeding mouth and be arranged on described outside Powder feeding wheel in shell, described powder feeding wheel is driven by driving motor (19);
Each described plasma beam processing supervising device (29) the most also includes sending out described plasma Plasma generator controller (7) that raw device is controlled, gas flow to air supply pipe (5) are carried out The detection of gas flow rate unit (11) of detection in real time, the Flow-rate adjustment installed upper to air supply pipe (5) The gas flow controller (12) that valve (6) is controlled, the paving powder thickness to power spreading device (2) The Thickness sensitivity unit (18) detected in real time and the paving powder that driving motor (19) is controlled Gage controller (20), described plasma generator controller (7) and described plasma generator Connecting, described detection of gas flow rate unit (11) is connected with gas flow controller (12);Described Thickness sensitivity unit (18) is connected with paving powder gage controller (20).
5. according to a kind of constituency plasma fusing rapid forming equipment described in claim 1 or 2, its It is characterised by: described horizontal stamp pad (4) includes moulding cylinder (4-2) and the energy of the equal opening in top and the bottom The horizontal table (4-1) moved up and down in moulding cylinder (4-2), described moulding cylinder (4-2) Surround including by the polylith side shield being laid in outside horizontal table (4-1) surrounding;Described shower nozzle Outlet and horizontal stamp pad (4) between the outlet that distance is described shower nozzle and horizontal table (4-1) distance between upper surface.
6. according to a kind of constituency plasma fusing rapid forming equipment described in claim 1 or 2, its It is characterised by: the quantity of described horizontal stamp pad (4) is multiple, multiple described horizontal stamp pads (4) It is respectively the print platform printed for multiple workpiece to be formed (3) and it is respectively positioned in same level; Each described horizontal stamp pad (4) bottom is mounted on electric walking mechanism (25), multiple described Print platform is respectively positioned on below described plasma beam system of processing, and position in multiple described print platform Print platform immediately below described plasma beam system of processing is platform to be controlled;
The quantity of described powder sending and laying device is multiple and the quantity phase of its quantity and horizontal stamp pad (4) With, each described horizontal stamp pad (4) is mounted on a described powder sending and laying device;
Described monitoring system also includes that the electric walking mechanism (25) to multiple described print platforms is respectively The traveling controller (26) that is controlled and multiple walking position to multiple described print platforms respectively The walking position detector unit (27) detected in real time, described position adjustment controller (15) is right The described stamp pad position regulator of multiple described print platforms is respectively controlled;Beat described in multiple The electric walking mechanism (25) of print platform and multiple described walking position detector unit (27) are all with capable Walk controller (26) connect, the described stamp pad position regulator of multiple described print platforms all with Position adjustment controller (15) connects.
7. one kind utilizes rapid forming equipment as claimed in claim 1 to treat shaping workpiece to carry out fast short-term training The method of type, it is characterised in that: the method comprises the following steps:
Step one, workpiece three-dimensional stereo model to be formed obtain and hierarchy slicing processes: use at data Reason equipment and call image processing module and obtain the three-dimensional stereo model of workpiece to be formed (3), then adjusts The three-dimensional stereo model treating shaping workpiece (3) by hierarchy slicing module carries out hierarchy slicing, and obtains Obtain multiple layering cross-sectional images;
Multiple described layering cross-sectional images are to treat the three-dimensional stereo model of shaping workpiece (3) to carry out point The image in multiple layering cross section is obtained, multiple described layering cross sections uniform cloth from the bottom to top after layer section If;The each described layering cross section of described workpiece to be formed (3) is all divided into multiple respectively by multiple Described plasma beam processing unit (plant) carries out the print zone printed;
Step 2, scanning pattern are filled: use data handling equipment and call described image processing module, Described layering cross-sectional images multiple in step one are respectively processed, and complete multiple described layering and cut The scanning pattern filling process in face, it is thus achieved that the scanning pattern in multiple described layering cross sections;
The scanning pattern in each described layering cross section all includes the multiple described printing on this layering cross section The scanning pattern in district;
Step 3, printing path obtain: described data handling equipment is multiple according to obtain in step 2 The scanning pattern in described layering cross section, it is thus achieved that the printing path in multiple described layering cross sections;Each described The printing path in layering cross section is all identical with the scanning pattern in this layering cross section, and each described layering cuts The printing path in face all includes the printing path of the multiple described print zone on this layering cross section;
Step 4, the most successively printing: according to the multiple described layering cross section obtained in step 3 Printing path, the most successively treat shaping workpiece (3) and print, it is thus achieved that by multiple one-tenth The finished workpart that type layer stacks from the bottom to top;The quantity of described shape layer is divided with described in step one The quantity of layer cross section is identical, the installation position of multiple described shape layers respectively with multiple described layering cross sections Installation position one_to_one corresponding and its thickness the most identical, the thickness of described shape layer with described in adjacent two Distance between layering cross section is identical, and in step 3, the printing path in multiple described layering cross sections is respectively The printing path of multiple described shape layers;Treating shaping workpiece (3) when printing, process is as follows:
Step 401, bottom print: according to beating of current institute's printing shaping layer acquired in step 3 Print path, uses described plasma beam system of processing to treat currently being printed of shaping workpiece (3) Shape layer prints;Use described plasma beam system of processing that current institute printing shaping layer is carried out During printing, multiple described plasma beam processing unit (plant) is used to synchronize many to current institute printing shaping layer Individual described print zone prints respectively;
The Method of printing of multiple described plasma beam processing unit (plant)s is the most identical;
Use any one described plasma beam processing unit (plant) institute to current institute printing shaping layer State print zone when printing, this plasma beam processing unit (plant) move horizontally controller (24) root According to the printing path of this print zone in current institute printing shaping layer acquired in step 3, to described water Flat mobile device is controlled and drives described plasma generator to move in the horizontal plane;Institute Stating in plasma generator moving process, this plasma beam processing unit (plant) passes through described beam-plasma Spread printed material on horizontal stamp pad (4) is scanned continuously, completes current institute printing shaping The print procedure of layer;
In this step, current institute printing shaping layer is the molding being positioned at bottommost in multiple described shape layer Layer;
Step 402, last layer print, and comprise the following steps:
Step 4021, horizontal stamp pad move down: carried out by horizontal stamp pad (4) in the vertical direction Once move down and move down height identical with the thickness of described shape layer;
Step 4022, print and synchronize temperature control: according to current institute printing shaping acquired in step 3 The printing path of layer, uses described plasma beam system of processing to treat the current of shaping workpiece (3) Institute's printing shaping layer prints;Use described plasma beam system of processing to current institute printing shaping When layer prints, multiple described plasma beam processing unit (plant) is used to synchronize current institute printing shaping The multiple described print zone of layer prints respectively;
The Method of printing of multiple described plasma beam processing unit (plant)s is the most identical;
Use any one described plasma beam processing unit (plant) institute to current institute printing shaping layer State print zone when printing, this plasma beam processing unit (plant) move horizontally controller (24) root According to the printing path of this print zone in current institute printing shaping layer acquired in step 3, to described water Flat mobile device is controlled and drives described plasma generator to move in the horizontal plane;Institute Stating in plasma generator moving process, this plasma beam processing unit (plant) passes through described beam-plasma Spread printed material on the most printed next one described shape layer upper surface is swept continuously Retouch, complete the print procedure of current institute printing shaping layer;In print procedure, pass through temperature detecting unit (9) this plasma beam processing unit (plant) in the most printed described shape layer of the next one is beaten The upper surface temperature in print region detects and by detected temperature information synchronous driving in real time to printing Distance regulation controller (10);Further, list is detected by the distance of this plasma beam processing unit (plant) Distance between outlet and the horizontal stamp pad (4) of described shower nozzle is detected by unit (8) in real time, And by the range information synchronous driving detected to printing distance regulation controller (10);Described printing Distance regulation controller (10) temperature information that detected according to temperature detecting unit (9) and passing through Control described printing distance adjusting means between outlet and the horizontal stamp pad (4) of described shower nozzle Distance is adjusted, and makes this plasma beam processing in the most printed described shape layer of the next one The upper surface temperature of device institute print area is not higher than the 0.6 of the material fusing point of workpiece to be formed (3) Times;
Step 403, step 402 is repeated several times, until completing workpiece to be formed (3) all shape layers Print procedure.
8. according to treating, described in claim 7, the method that shaping workpiece carries out rapid shaping, its feature It is: before step 4 the most successively prints, the root of data handling equipment elder generation described in step one According to the material fusing point pre-build and printing range data storehouse, and combine by parameter input unit in advance The Material Name of the printed material of each plasma beam processing unit (plant) of input, adds each plasma beam The basis that frock is put prints distance and is determined;Described parameter input unit and described data handling equipment Connect;
In described material fusing point and printing range data storehouse, storage has the material fusing point of various material and beats Print range information, material fusing point and the printing range information of every kind of described material all include this kind of material Title, fusing point and basis print distance;It is 5mm~1000mm that described basis prints distance, and material Fusing point is the highest, and it is the nearest that basis prints distance;
Step 401 use any one described plasma beam processing unit (plant) to current institute printing shaping layer A described print zone print before, the printing of this plasma beam processing unit (plant) distance regulation Controller (10) is according to the range information detected apart from detector unit (8) and by described in control Print distance adjusting means the distance between outlet and the horizontal stamp pad (4) of described shower nozzle to be regulated Distance is printed for described basis;Further, step 401 use this plasma beam processing unit (plant) to carry out In print procedure, the distance between outlet and the horizontal stamp pad (4) of described shower nozzle is described basis Print distance;
Step 4022 use any one described plasma beam processing unit (plant) to current institute printing shaping Before one described print zone of layer prints, the printing distance of this plasma beam processing unit (plant) is adjusted Range information the level that combines that joint controller (10) is detected according to distance detector unit (8) are beaten The moving down number of times and move down height every time of ink pad (4), and by control described printing away from From upper by the outlet of described shower nozzle and the most printed current described shape layer of the next one of adjusting means Distance between surface is adjusted to described basis and prints distance;Step 4022 uses this beam-plasma Stream processing unit (plant) carries out in print procedure, between outlet and the horizontal stamp pad (4) of described shower nozzle Distance when being adjusted, described printing distance regulation controller (10) is according to temperature detecting unit (9) The temperature information that detected also combines range information that distance detector unit (8) detected to described spray Distance between outlet and the horizontal stamp pad (4) of head is adjusted, make current the most printed under In one described shape layer, the upper surface temperature of this plasma beam processing unit (plant) institute print area controls Between 0.1 times~0.6 times of the material fusing point of this plasma beam processing unit (plant) printed material;And And, when the distance between outlet and the horizontal stamp pad (4) of described shower nozzle is adjusted, regulation Amplitude is 5mm~60mm, and material fusing point is the highest, and the amplitude of accommodation is the least.
9. according to treating, described in claim 7 or 8, the method that shaping workpiece carries out rapid shaping, its It is characterised by: the quantity of described horizontal stamp pad (4) is multiple, multiple described horizontal stamp pads (4) It is respectively the print platform printed for multiple workpiece to be formed (3) and it is respectively positioned in same level; Each described horizontal stamp pad (4) bottom is mounted on electric walking mechanism (25), multiple described Print platform is respectively positioned on below described plasma beam system of processing, and position in multiple described print platform Print platform immediately below described plasma beam system of processing is platform to be controlled;
Described monitoring system also includes that the electric walking mechanism (25) to multiple described print platforms is respectively The traveling controller (26) that is controlled and multiple walking position to multiple described print platforms respectively The walking position detector unit (27) detected in real time, described position adjustment controller (15) is right The described stamp pad position regulator of multiple described print platforms is respectively controlled;Beat described in multiple The electric walking mechanism (25) of print platform and multiple described walking position detector unit (27) are all with capable Walk controller (26) connect, the described stamp pad position regulator of multiple described print platforms all with Position adjustment controller (15) connects;
When step one carries out workpiece three-dimensional stereo model to be formed acquisition and hierarchy slicing process, to many Individual described workpiece to be formed (3) carries out three-dimensional stereo model acquisition respectively and hierarchy slicing processes;Its In, workpiece (3) to be formed any one described is carried out at three-dimensional stereo model acquisition and hierarchy slicing During reason, all use data handling equipment and call image processing module and obtain this workpiece to be formed (3) Three-dimensional stereo model, recall the hierarchy slicing module 3 D stereo to this workpiece to be formed (3) Model carries out hierarchy slicing, and obtains multiple layering cross-sectional images of this workpiece to be formed (3);
The height of multiple workpiece to be formed (3) is the most identical;To multiple described workpiece to be formed (3) When three-dimensional stereo model carries out hierarchy slicing, lift height is the most identical and is obtained layering cross-sectional image Quantity is the most identical;
When step 2 is scanned path filling, multiple described workpiece to be formed (3) are entered respectively Row scanning pattern filling processes;Wherein, workpiece (3) to be formed any one described is scanned road When footpath filling processes, all use described data handling equipment and call described image processing module, to step The multiple described layering cross-sectional image of this workpiece to be formed (3) obtained in rapid is respectively processed, And complete the scanning pattern filling process in multiple described layering cross section, it is thus achieved that multiple described layering cross sections Scanning pattern;
When step 3 carries out printing path acquisition, described data handling equipment is used to obtain respectively multiple The printing path of described workpiece to be formed (3);Wherein, any one described workpiece to be formed (3) is obtained Printing path time, described data handling equipment all in accordance with in step 2 obtain this workpiece to be formed (3) scanning pattern in multiple described layering cross section, it is thus achieved that multiple institutes of this workpiece to be formed (3) State layering cross section printing path, and the printing path in each described layering cross section all with this layering cross section Scanning pattern identical;
When step 4 the most successively prints, same to multiple described workpiece to be formed (3) Step the most successively prints;
Step 401 is carried out when bottom prints and when step 402 carries out last layer printing, all Use described plasma beam system of processing by first to rear, multiple described workpiece to be formed (3) being worked as Front institute printing shaping layer prints respectively;Treat that the current of multiple described workpiece to be formed (3) is beaten After print shape layer has all printed, the upper shape layer to multiple described workpiece to be formed (3) Print respectively;
Wherein, use described plasma beam system of processing to workpiece (3) to be formed any one described Current institute printing shaping layer when printing, first pass through traveling controller (26) and described beat multiple The electric walking mechanism (25) of print platform is respectively controlled, and will beat for this workpiece to be formed (3) The described print platform of print moves to the underface of described plasma beam system of processing;Now, it is positioned at institute Stating the described print platform immediately below plasma beam system of processing is platform to be controlled;Afterwards, then adopt By described plasma beam system of processing, the current institute printing shaping layer of this workpiece to be formed (3) is entered Row prints.
10. according to treating, described in claim 7 or 8, the method that shaping workpiece carries out rapid shaping, It is characterized in that: described dust feeder (14) includes having charging aperture and the shell of powder feeding mouth and installation Powder feeding wheel in described shell, described powder feeding wheel is driven by driving motor (19);
Each described plasma beam processing supervising device (29) the most also includes sending out described plasma Plasma generator controller (7) that raw device is controlled, gas flow to air supply pipe (5) are carried out The detection of gas flow rate unit (11) of detection in real time, the Flow-rate adjustment installed upper to air supply pipe (5) The gas flow controller (12) that valve (6) is controlled, the paving powder thickness to power spreading device (2) The Thickness sensitivity unit (18) detected in real time and the paving powder that driving motor (19) is controlled Gage controller (20), described Thickness sensitivity unit (18) is with paving powder gage controller (20) even Connecing, described plasma generator controller (7) is connected with described plasma generator, described gas Flow detection unit (11) is connected with gas flow controller (12);Described distance detector unit (8) It is connected with gas flow controller (12);
In step 4 the most successively print before, data handling equipment elder generation described in step one according to The gas flow data storehouse pre-build, and combine the thickness of described shape layer set in advance, to confession The base gas flow of trachea (5) is determined;
Described gas flow data storehouse internal memory contains the basic gas needed for the shape layer of multiple different thickness Body flow;Described base gas flow is 5ml/min~500ml/min, and the thickness of described shape layer The thickest, described base gas flow is the biggest;
Before in step 401, any one described plasma beam processing unit (plant) prints, described gas Flow controller (12) according to detection of gas flow rate unit (11) institute detection information and is flowed by control The gas flow of air supply pipe (5) is adjusted to described base gas flow by adjustable valve (6);Step In 401 in any one described plasma beam processing unit (plant) print procedure, the gas of described air supply pipe (5) Body flow is described base gas flow;
In step 4022, any one described plasma beam processing unit (plant) carries out printing and synchronizing temperature control Cheng Zhong, described gas flow controller (12) is detected letter according to detection of gas flow rate unit (11) Cease and combine distance detector unit (8) institute detecting distance information, and by controlling flow control valve (6) The gas flow of air supply pipe (5) is carried out increase and decrease adjustment;Further, the outlet of described shower nozzle and level Distance between stamp pad (4) is the biggest, and the gas flow of described air supply pipe (5) is the biggest.
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