A kind of plasma founding rapid forming equipment and quick molding method
Technical field
The invention belongs to rapid shaping technique fields, more particularly, to a kind of plasma founding rapid forming equipment and quickly
Forming method.
Background technology
Currently, metal parts rapid shaping technique is mainly precinct laser fusion rapid molding technology both at home and abroad
(Selective laser melting, SLM).Such as United States Patent (USP) " the PROCESS AND of Patent No. US7047098
One kind is described in detail in DEVICE FOR PRODUCING A SHAPED BODY BY SELECTIVE LASER MELTING "
The precinct laser fusion manufacturing process and its equipment of fine and close part are manufactured using three-dimensional digital model.Publication No. CN1603031A
Chinese invention patent " a kind of Metal Part by Selective Laser Melting quick molding method and its device " disclose a kind of metal zero
Part precinct laser fusion rapid molding method and its device, the device include semiconductor pumped YAG laser or optical fiber laser,
Light beam focusing system, molded part cylinder and powder cylinder, semiconductor pumped YAG laser or optical fiber laser and light beam focusing system phase
Connection, and scanning is focused in molded part cylinder, molded part cylinder is connected by powdering roller with powder cylinder, and powdering roller is connected with drive
Dynamic motor, driving motor are connected with computer.
In order to prepare larger size or prepare multiple parts simultaneously, laser array and optical system array approaches are taken
Or mobile galvanometer scheme.The Chinese invention patent of Publication No. CN 102266942A " directly manufactures the precinct laser of heavy parts
Fusion rapid molding equipment " discloses a kind of precinct laser fusion rapid molding equipment of direct manufacture large compact part.It should
Equipment includes mainly laser array, optical system array, moulding cylinder, the three-dimensional heat stepwise insulation construction of moulding cylinder, molding
Cylinder weight balancing system, substrate levelling device, double recovery tanks, double storage powder casees, double quantitative powder feedings and powder discharging device, power spreading device,
Protective atmosphere cover, gas purge system, control system.The optical system taken is by multiple optical system units, Mechanical Moving
Platform construction, can be with arbitrary extension or the coverage area of reduction optical system.The Chinese invention of Publication No. CN103071795A
Patent " mobile galvanometer selective laser melting SLM formers " disclose a kind of mobile galvanometer selective laser melting SLM at
Shape equipment.The equipment includes straight with the Y-axis of X-axis linear motor and longitudinal rail group with cross slide way group by communication line
The digital control system that line motor is connected, X-axis linear motor and Y-axis linear motor constitute turntable driving structure, the turntable driving
Structure is drivingly connected with laser bundle-enlarging collimation microscope group, and laser bundle-enlarging collimation microscope group bottom is caught in galvanometer unit, under galvanometer unit
Side is provided with forming work package, and inert gas gas curtain is provided between forming work package and galvanometer unit.
The basic functional principle of precinct laser fusion rapid molding equipment is:First on computers utilize Pro/e, UG,
The 3D sculpting softwares such as CATIA design the three-dimensional entity model (i.e. three-dimensional stereo model) of part, then pass through Slice Software
Hierarchy slicing is carried out to the threedimensional model, obtains the outline data in each section, filling scan path is generated by outline data, in work
Make the certain thickness powder of tiling in cylinder, according to the control of computer, laser beam is by way of vibration mirror scanning according to three-dimensional zero
The slicing treatment result of component figure selectively melts fore-put powder layer;Then, working cylinder declines certain distance and spreads again
Powder, laser beam complete one layer under parts of manufacture under the drive of galvanometer again according to the 3-D graphic of parts;So weight
The processes such as multiple powdering, scanning and working cylinder decline, to realize the manufacture of three-dimensional parts.
Nowadays, precinct laser fusion rapid molding technology is primarily present following three aspects problem:
The first, precinct laser fusion rapid molding technology needs protective atmosphere or vacuum environment, to avoid in forming process
The oxidation of metal parts.This keeps precinct laser fusion rapid molding device structure complicated, and forming part size is restricted, energy
Source laser device system price is high, and former is expensive.
The second, precinct laser fusion rapid molding technology needs the moulding cylinder system of powdering.This keeps precinct laser fusion fast
Rapid-result type device structure is complicated, and not only forming part size is restricted, and shaping efficiency is relatively low.
Third, in order to ensure that part mechanical property, precinct laser fusion rapid molding technology need the spherical shape of good fluidity
Metal powder.This keeps precinct laser fusion rapid molding equipment operating cost very high.
In addition, Chinese invention patent " laser cladding forming equipment and a kind of metal zero of Publication No. CN101885063A
The laser cladding forming method of part " discloses a kind of quick molding method and its equipment of laser melting coating silk material, and the equipment is main
Workbench, laser device, wire feeder including three-dimensional motion and control system.Wherein, wire feeder includes pinching roller
Right, the driving wheel for pinching roller pair is connect with stepper motor, and wire feed direction is controlled by a three-dimensional regulation device.Control system packet
Multi-axis motion control card is included, multi-axis motion control card is connect with stepper motor, table drive motor and laser aid respectively.At
Type method includes modeling, instruction conversion, slice forming and deposition modeling, by laser melting wire, forms molten drop,
Molten drop accumulates cooling on the table, and forms thin slice with working table movement, and each thin slice deposits and forms three from level to level successively
Tie up metal parts.
But above-mentioned laser cladding forming device and method are primarily present following three aspects problem:
The first, laser cannot protect molten drop, need to lead to protective gas at wire feeding mouth, and protective gas is easy cooling molten drop,
Molten drop is solidified and is layered molding and is had an adverse effect, causes 3-dimensional metal part mechanical property relatively low.
The second, laser power is low and the diameter of wire is big, it is difficult to realize the fast short-term training of ceramic composite materials part
Type.
Third, due to surface tension, molten drop cooled and solidified be molded when generate rounded constrictions, lead to piece surface not only
It is sliding.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of plasma melting
Cast rapid forming equipment, simple structure and reasonable design and it is easy to use, shaping efficiency is high, using effect is good, can synchronize
Multiple workpiece print procedures are completed, are not necessarily to closed molding room, and do not need protective atmosphere or vacuum environment, workpiece shaping process
Directly carried out under atmospheric environment.
In order to solve the above technical problems, the technical solution adopted by the present invention is:A kind of plasma founding rapid forming equipment,
It is characterized in that:By monitoring system, plasma beam system of processing and multiple printings printed respectively for multiple workpiece to be formed
Platform forms, the structure all same of multiple print platforms;Each print platform includes being placed for workpiece to be formed
Horizontal stamp pad, the stamp pad position regulator that is adjusted to the position of horizontal stamp pad and be mounted on the stamp pad
The electric walking mechanism of position regulator bottom, the horizontal stamp pad are installed on the stamp pad position regulator;
The horizontal stamp pad of multiple print platforms is respectively positioned in same level;Multiple print platforms be respectively positioned on it is described it is equal from
The printing being located at below beamlet stream system of processing, and in multiple print platforms immediately below the plasma beam system of processing
Platform is platform to be controlled;
The plasma beam system of processing by be equipped with nozzle and for generate beam-plasma plasma generator,
The printing distance that the distance between the horizontal stamp pad of outlet and the platform to be controlled to the nozzle is adjusted is adjusted
Device, the feeder that working gas is provided for the plasma generator and the wire feed for continuously sending out processed silk material
Device forms;The plasma generator is located above horizontal stamp pad and it is mounted on the printing distance adjusting means
On, the wire feeder is located above horizontal stamp pad and it is located at the plasma generator side;The feeder
It is connect with the air inlet opened on the plasma generator by air supply pipe;The outer end of the processed silk material is fusing
End, the melting end is located at below the outlet of the nozzle and it is located on the central axis of the beam-plasma;
The monitoring system includes the walking control being respectively controlled to the electric walking mechanism of multiple print platforms
Device processed, multiple walking position detection units that the walking position of multiple print platforms is measured in real time respectively, to more
The position that the stamp pad position regulator of a print platform is respectively controlled adjusts controller, to described to be controlled
Temperature detecting unit, the outlet to the nozzle and the institute that workpiece surface temperature to be formed on platform processed is measured in real time
Distance detection unit that the distance between the horizontal stamp pad for stating platform to be controlled is measured in real time and to the printing distance
The printing that regulating device is controlled is apart from adjusting control device, the electric walking mechanism of multiple print platforms and multiple described
Walking position detection unit is connect with traveling controller, and the stamp pad position regulator of multiple print platforms is equal
It is connect with position adjustment controller, the printing is connect apart from adjusting control device with the printing distance adjusting means, the temperature
Degree detection unit and distance detection unit are connect with printing apart from adjusting control device;The temperature detecting unit and printing distance
Adjusting control device forms temperature control device.
A kind of above-mentioned plasma founding rapid forming equipment, it is characterized in that:The monitoring system further include to it is described it is equal from
Plasma generator controller that daughter generator is controlled, the gas flow that the gas flow of air supply pipe is measured in real time
Detection unit and the gas flow controller controlled the flow control valve installed on air supply pipe, the plasma are controlled
Device processed is connect with the plasma generator, and the detection of gas flow rate unit is connect with gas flow controller.
A kind of above-mentioned plasma founding rapid forming equipment, it is characterized in that:The plasma generator includes plasma
Rifle, the nozzle are the anode nozzle of plasma gun front end;The plasma gun includes the gun body for being provided with the air inlet, is located at
Anode nozzle immediately ahead of gun body and the cathode being plugged in gun body, the anode nozzle are located at cathode front side, the arc chamber
On front side of cathode and it is located at the posterior medial of anode nozzle, and the front inner of the anode nozzle is spout;The anode
Nozzle, cathode and arc chamber are laid with gun body in coaxial;The air inlet is located on rear side of gun body, and the spout is with gun body in same
Axis is laid or the angle between gun body central axis is 30 °~45 °.
A kind of above-mentioned plasma founding rapid forming equipment, it is characterized in that:Further include the multiple print platforms of a confession
The walking of electric walking mechanism walking track, the electric walking mechanism of multiple print platforms is respectively positioned on the walking track
On, the electric walking mechanism is the walking mechanism for driving the print platform to be moved forward and backward along the walking track;It is more
The horizontal stamp pad of a print platform is laid from front to back along the length direction of the walking track;
The wire feeder includes the wire feed that top is wound with the wire tray of processed silk material, is conveyed to being processed silk material
Mechanism and the wire feed driving mechanism driven to the wire feeder, the wire feeder are located on the inside of wire tray and are sent with described
The connection of silk mechanism;The wire tray is coaxially mounted in shaft and can be rotated around the shaft.
A kind of above-mentioned plasma founding rapid forming equipment, it is characterized in that:The wire feeder further includes to being processed silk
The three-dimensional regulation holder that the wire feed direction of material is adjusted, the wire feeder are mounted on three-dimensional regulation holder;The wire feed
Mechanism is wire pushing roller, and the wire pushing roller includes driving roller group and driven roller group, and the driving roller group includes two
By the driving roller that wire feed driving mechanism drive and rotation direction is opposite, the driven roller group includes two rotation sides
To opposite and be located at the driven rollers of processed silk material both sides, the driving roller group is located at the driven roller group one
Side, two driving rollers are located at processed silk material both sides;
The monitoring system further include the speed detection unit that is measured in real time of wire feed rate to being processed silk material and
To the wire feed rate controller that wire feed driving mechanism is controlled, the speed detection unit is connect with wire feed rate controller.
A kind of above-mentioned plasma founding rapid forming equipment, it is characterized in that:The stamp pad of multiple print platforms
Position regulator is three axis numerically controlled machine;
Angle between the central axis and vertical plane of the beam-plasma that the plasma generator generates is not more than
45°;The printing distance adjusting means are upper to the nozzle adjust up and down along the central axis of the beam-plasma
Lower adjusting apparatus, the distance detection unit are to export to level from the nozzle to the central axis along the beam-plasma
The distance detection device that the distance between stamp pad is measured in real time.
Meanwhile a kind of invention additionally discloses method and steps simple, reasonable design and realize convenient, using effect it is good etc. from
Sub- founding quick molding method, it is characterised in that:This approach includes the following steps:
Step 1: workpiece three-dimensional stereo model to be formed obtains and hierarchy slicing processing:To multiple workpiece to be formed
Three-dimensional stereo model acquisition and hierarchy slicing processing are carried out respectively;
Wherein, it when carrying out three-dimensional stereo model acquisition and hierarchy slicing processing to workpiece to be formed described in any one, adopts
With data processing equipment and image processing module is called to obtain the three-dimensional stereo model of the workpiece to be formed, recalls hierarchy slicing
Module carries out hierarchy slicing to the three-dimensional stereo model of the workpiece to be formed, and obtains multiple layering sections of the workpiece to be formed
Image;Multiple layering cross-sectional images are multiple to being obtained after the three-dimensional stereo model of the workpiece to be formed progress hierarchy slicing
It is layered the image in section, multiple layering sections are uniformly distributed from the bottom to top;
The height all same of multiple workpiece to be formed;The three-dimensional stereo model of multiple workpiece to be formed is layered
When slice, lift height all same and the quantity all same for obtaining layering cross-sectional image;
Step 2: scan path is filled:Path filling is scanned respectively to multiple workpiece to be formed in step 1
Processing;
Wherein, when being scanned path filling processing to workpiece to be formed described in any one, it is all made of the data processing
Equipment and calling described image processing module, multiple layering cross-sectional images to the workpiece to be formed obtained in step 1
It is respectively processed, and completes the scan path filling process in multiple layering sections, obtain multiple layering sections
Scan path;
Step 3: printing path obtain and under pass:Multiple institutes in obtaining step one are distinguished using the data processing equipment
State the printing path of workpiece to be formed;
Wherein, when obtaining the printing path of any one workpiece to be formed, the data processing equipment is all in accordance with step
The scan path in multiple layering sections of the workpiece to be formed obtained in two, obtains the multiple described of the workpiece to be formed
It is layered the printing path in section, and the printing path in each layering section is identical as the scan path in the layering section;
Step 4: successively printing from the bottom to top:Multiple workpiece synchronizations to be formed are successively printed from the bottom to top;
Wherein, when successively being printed from the bottom to top to workpiece to be formed described in any one, all in accordance with being obtained in step 3
The workpiece to be formed it is multiple it is described layering sections printing paths successively printed from the bottom to top, obtain by multiple moldings
Finished workpart made of layer stacks from the bottom to top;The shape layer for being located at bottommost in multiple shape layers is bottom;It is described at
The quantity of type layer is identical as the quantity in layering section of the workpiece to be formed of this in step 1, the laying of multiple shape layers
Position respectively with it is multiple it is described layering sections installation positions correspond and its thickness all same, the thickness of the shape layer with
The distance between the two neighboring layering section is identical, and multiple layering sections of the workpiece to be formed of this in step 3 are beaten
Print path is respectively the printing path of multiple shape layers;
When successively being printed from the bottom to top to multiple workpiece synchronizations to be formed, process is as follows:
Step 401, bottom printing:The bottom of multiple workpiece to be formed is printed respectively, and multiple described is waited for
The bottom Method of printing all same of shaping workpiece;After the completion of waiting for that the bottom of multiple workpiece to be formed prints, enter step
402;
Wherein, when being printed to the bottom of workpiece to be formed described in any one, include the following steps:
Step 4011, walking displacement:The electric walking mechanism of multiple print platforms is distinguished by traveling controller
Controlled, by for the print platform of workpiece to be formed printing move to the plasma beam system of processing just under
Side;At this point, the print platform immediately below the plasma beam system of processing is platform to be controlled;
Step 4012, printing:The position adjustment controller working as according to the workpiece to be formed acquired in step 3
The printing path of preceding institute's printing shaping layer, controls the stamp pad position regulator of the platform to be controlled and drives water
Flat stamp pad is moved in the horizontal plane;In the horizontal stamp pad moving process, the plasma beam system of processing will
The plasma beam of interior band melting liquid stream is continuously sprayed onto on horizontal stamp pad;After melting liquid stream solidifies, completion is currently beaten
Print the print procedure of shape layer;
Step 402, last layer printing:A upper shape layer for multiple workpiece to be formed is printed respectively, and
The Method of printing all same of a upper shape layer for multiple workpiece to be formed;
Wherein, when being printed to a upper shape layer for workpiece to be formed described in any one, include the following steps:
Step 4021, walking displacement and horizontal stamp pad move down:Traveling controller is first passed through to multiple print platforms
Electric walking mechanism be respectively controlled, the beam-plasma will be moved to for the print platform of workpiece to be formed printing
Flow the underface of system of processing;At this point, the print platform immediately below the plasma beam system of processing is to be controlled
Platform processed;Later, the position adjustment controller is driven by the stamp pad position regulator of the control platform to be controlled
Horizontal stamp pad is once moved down and is moved down highly identical as the thickness of the shape layer in the vertical direction;
Step 4022, printing and synchronous temperature control:Position adjustment controller is waited for into according to acquired this in step 3
The printing path of current institute's printing shaping layer of type workpiece, controls the stamp pad position regulator of the platform to be controlled
It makes and horizontal stamp pad is driven to be moved in the horizontal plane;In the horizontal stamp pad moving process, the plasma beam
The plasma beam that interior band is melted liquid stream by system of processing is continuously sprayed onto the upper of current printed next shape layer
On surface;After melting liquid stream solidifies, the print procedure of current institute's printing shaping layer is completed;
In this step, in the horizontal stamp pad moving process, by temperature detecting unit under currently printed
The upper surface temperature of one shape layer is measured in real time and adjusts detected temperature information synchronous driving to printing distance
Controller is saved, while by distance detection unit between the outlet of the nozzle and the horizontal stamp pad of the platform to be controlled
Distance be measured in real time and by the range information synchronous driving detected to printing apart from adjusting control device;It is described printing away from
The temperature information that is detected according to temperature detecting unit from adjusting control device and by controlling the printing distance adjusting means pair
The distance between the outlet of the nozzle and the horizontal stamp pad of the platform to be controlled are adjusted, and make current printed
The upper surface temperature of next shape layer is not higher than 0.6 times of the material fusing point of the workpiece to be formed;
In horizontal stamp pad moving process described in step 4012 and step 4022, the wire feeder is by processed silk material
It is continuous to send out, while the beam-plasma generated by the plasma beam system of processing carries out the melting end for being processed silk material
Fusing, and make the melting end melt the molten melt drop to be formed continuously and form liquid stream;The liquid stream be distributed in it is described it is equal from
In beamlet, the interior plasma beam with melting liquid stream is formed;
Step 402 is repeated several times in step 403, until completing the printing of all shape layers of multiple workpiece to be formed
Process obtains the finished workpart for multiple workpiece to be formed that printing is completed.
The above method, it is characterized in that:Before successively being printed from the bottom to top in step 4, data processing described in step 1 is set
It is standby first according to the material fusing point and printing range data library pre-established, and combine pre-entered by parameter input unit it is more
The Material Name of a workpiece to be formed is determined the basis printing distance of each workpiece to be formed respectively;The parameter
Input unit connects with the data processing equipment;
The material fusing point and printing range information of various material are stored in the material fusing point and printing range data library,
The material fusing point and printing range information of each material include title, fusing point and the basis printing distance of this kind of material;
The basis printing distance is 5mm~1000mm, and material fusing point is higher, and basis printing distance is closer;
Before being printed in step 4012, what the printing was detected apart from adjusting control device according to distance detection unit
Range information and the printing distance adjusting means by controlling the platform to be controlled, by the outlet of the nozzle with it is described
The distance between horizontal stamp pad of platform to be controlled is adjusted to the basis printing distance of the workpiece to be formed;Step 4012
In middle print procedure, the distance between the outlet of the nozzle and the horizontal stamp pad of the platform to be controlled are the work to be formed
The basis printing distance of part;
Before carrying out printing and synchronizing temperature control in step 4022, the printing is single according to distance detection apart from adjusting control device
The number that moves down of range information and the horizontal stamp pad of combination that member is detected moves down height with each, and passes through control
The printing distance adjusting means of the platform to be controlled, by the outlet of the nozzle and current printed next institute
The distance between the upper surface for stating shape layer is adjusted to the basis printing distance of the workpiece to be formed;To institute in step 4022
When the distance between the horizontal stamp pad of the outlet and the platform to be controlled of stating nozzle is adjusted, the printing distance is adjusted
The range information that the temperature information and combination distance detection unit that controller is detected according to temperature detecting unit are detected is to institute
The outlet for stating nozzle is adjusted with the distance between horizontal stamp pad of the platform to be controlled, make it is currently printed under
The upper surface temperature of one shape layer controls between 0.1 times~0.6 times of the material fusing point of the workpiece to be formed;And
And when the outlet of the nozzle is adjusted with the distance between the horizontal stamp pad of the platform to be controlled, the amplitude of accommodation
For 5mm~60mm, and the material fusing point of the workpiece to be formed is higher, and the amplitude of accommodation is smaller;
The range information that the distance detection unit is detected is the water of the outlet and the platform to be controlled of the nozzle
The distance between flat stamp pad.
The above method, it is characterized in that:The wire feeder includes that top is wound with the wire tray of processed silk material, to being processed
The wire feeder and the wire feed driving mechanism driven to the wire feeder, the wire feeder that silk material is conveyed are located at
It is connect on the inside of wire tray and with the wire feeder;The wire tray is coaxially mounted in shaft and can be rotated around the shaft;
The monitoring system further includes the plasma generator controller controlled to the plasma generator, to supplying
Detection of gas flow rate unit that the gas flow of tracheae is measured in real time controls the flow control valve installed on air supply pipe
The gas flow controller of system, the speed detection unit that is measured in real time of wire feed rate to being processed silk material and wire feed is driven
The wire feed rate controller that motivation structure is controlled, the speed detection unit are connect with wire feed rate controller, it is described it is equal from
Sub- generator controller is connect with the plasma generator, and the detection of gas flow rate unit connects with gas flow controller
It connects, the distance detection unit is connect with gas flow controller;
Before successively being printed from the bottom to top in step 4, the first basis of data processing equipment described in step 1 pre-establishes
Gas flow and wire feed rate database, and in conjunction with the thickness of the preset shape layer, to the base gas of air supply pipe
The wire feed rate of flow and the wire feeder is determined;
The gas flow and wire feed rate databases contain the wire feed speed needed for the shape layer of a variety of different thickness
Degree and base gas flow;The base gas flow is 5ml/min~500ml/min, and the wire feed of the wire feeder is fast
Degree is bigger, and the base gas flow is bigger;
In horizontal stamp pad moving process described in step 4012 and step 4022, the speed detection unit is sent to described
The wire feed rate of silk device is measured in real time and by institute's detection information synchronous driving to wire feed rate controller, and the wire feed is fast
Controller is spent according to the wire feed rate of the predetermined wire feeder and combines speed detection unit institute detection information to sending
Silk driving mechanism is controlled, and keeps the wire feed rate of the wire feeder identical as predetermined wire feed rate;
Before being printed in step 4012, the gas flow controller is according to the detected letter of detection of gas flow rate unit
It ceases and the gas flow of air supply pipe is adjusted to the base gas flow by controlling flow control valve;It is printed in step 4012
In the process, the gas flow of the air supply pipe is the base gas flow;
It carries out printing in step 4022 and synchronize in temperature control process, the gas flow controller is according to detection of gas flow rate
Unit institute's detection information simultaneously combines distance detection unit institute detecting distance information, and by controlling flow control valve to air supply pipe
Gas flow is increased and decreased adjustment;Also, the nozzle outlet the horizontal stamp pad of the platform to be controlled between away from
From bigger, the gas flow of the air supply pipe is bigger.
The above method, it is characterized in that:In horizontal stamp pad moving process described in step 4012 and step 4022, the quilt
The wire feed rate for processing silk material is 0.1m/min~10m/min, a diameter of 0.02mm~10mm of the processed silk material;It is described
The diameter for being processed silk material is bigger, and wire feed rate is slower;And the material fusing point for being processed silk material is higher, wire feed rate is slower;
In step 4 from the bottom to top successively print before, by between the melting end of processed silk material and horizontal stamp pad away from
From preset wire feed height is adjusted to, the wire feed height is 5mm~1000mm;It is successively printed from the bottom to top in step 4
In the process, the fusing end position for being processed silk material is motionless.
Compared with the prior art, the present invention has the following advantages:
1, used plasma founding rapid forming equipment simple structure and reasonable design and input cost it is relatively low, processing
It makes and installation is laid conveniently.
2, used plasma founding rapid forming equipment is not necessarily to closed molding room, and does not need protective atmosphere or true
Altitude, workpiece shaping process directly carry out under atmospheric environment.Thus, structure is very simple, and forming part size is not
It is restricted, equipment price is relatively low.
3, printed material (being processed silk material) supply of plasma founding rapid forming equipment is in energy source beam-plasma
In (the drop plasma beam of material), the moulding cylinder system for not needing powdering does not need powdering system, it is only necessary to wire feed dress
It sets, structure significantly simplifies.
4, used plasma founding rapid forming equipment is easy to use, intelligence degree and shaping efficiency are high,
Using effect is good, and the quality of institute's shaping workpiece is high.Used monitoring system includes being controlled to stamp pad position regulator
The position adjustment controller of system treats temperature detecting unit that shaping workpiece upper surface temperature is measured in real time, to nozzle
The distance detection unit and printing distance adjusting means are carried out that the distance between outlet and horizontal stamp pad are measured in real time
The printing of control is connect apart from adjusting control device, position adjustment controller with stamp pad position regulator, and printing distance is adjusted
Controller is connect with printing distance adjusting means, and temperature detecting unit and distance detection unit are with printing apart from adjusting control device
Connection;Temperature detecting unit forms temperature control device with printing apart from adjusting control device.In actual use, temperature regulates and controls
Printing in system controls printing distance adjusting means according to temperature detecting unit institute's detection information apart from adjusting control device
System so that printing distance energy automatic adjusument can prevent the shape layer that completion has been printed caused by printing hypotelorism in this way
Occur the problem of fusing again, and can also prevent caused by printing hypertelorism formed precision is relatively low, melts liquid stream being sprayed onto
The problems such as being solidified before next printable layer upper surface so that forming process is easily controllable, and realizes conveniently, while can have
Effect prevents workpiece surface from aoxidizing, because without closed vacuum environment is arranged.In addition, used monitoring system further includes
Gas flow automatic adjusument and wire feed rate automatic adjusument function, intelligence degree are high.
5, the energy source that plasma founding rapid forming equipment uses is beam-plasma, and beam-plasma power is up to tens of thousand
Watt, metal, ceramics, resin and other composite materials can be melted, realizes the 3D printing of above-mentioned material part.Generate beam-plasma
Plasma generator (be specifically plasma gun) it is simple in structure, operation expense is low, and equipment cost is low.
6, the molten melt drop of plasma founding rapid forming equipment institute printed material is in plasma beam, beam-plasma sheet
Body has protective effect, adds the effect of working gas, can effectively prevent the oxidation of printed material, which need not protect
Atmosphere or vacuum environment directly use under atmospheric environment, with device structure is simple, operating cost is low, forming part size
The advantages that unrestricted.
7, plasma founding rapid forming equipment is continuously sent processed silk material into beam-plasma using wire feeder, is beaten
The cost of material is low for print.
8, by settable liquid at solid-state, technical process simplifies materials behavior when plasma founding rapid forming equipment prints,
Reduce the technology difficulty and cost of 3D printing.Meanwhile in working gas (beam-plasma includes unionized working gas)
Under effect, the melting end of processed silk material, which heats in beam-plasma and is fused into molten condition, forms small drop, melts
Molten melt drop afterwards is continuous and forms liquid stream and is sprayed together with beam-plasma, forms the interior plasma beam with melting liquid stream;
After being sprayed with beam-plasma due to the melting liquid stream that processed silk material is formed after fusing, forms interior band printed material and melt liquid stream
Microstream, form casting type molding, the rounded constrictions phenomenon that generates when avoiding the molding of molten drop cooled and solidified, part mechanical property
Can be high, surface is smooth, reduces the technology difficulty of rapid shaping.
9, used plasma founding rapid forming equipment is easy to use, intelligence degree is high and using effect
It is good, the 3D printing process of multiple workpiece can be synchronously completed, production efficiency greatly improves, and multiple print platforms are controlled by walking
System is alternately moved to print area (i.e. the underface of plasma beam system of processing), and control process is simple, it is convenient and more to realize
The Forming Quality of a workpiece can be effectively controlled.Multiple workpiece to be formed both can be the identical work of structure snd size all same
Part can also be multiple and different workpiece that structure is all different with size, and occupation mode is very flexible, be particularly suitable for high-volume
Small workpiece is processed.
10, used plasma founding quick molding method step is simple, reasonable design and realization are convenient, using effect
Good, beam-plasma has protective effect, does not need protective atmosphere or vacuum environment, is directly printed under atmospheric environment.And
And printed material supply does not need the molding of powdering in energy source beam-plasma (the melting liquid stream plasma beam of material)
Cylinder system.When printing, by settable liquid at solid-state, technical process simplifies materials behavior, reduce 3D printing technology difficulty and
Cost, and it is no longer size-limited to print part.As shown in the above, the present invention to traditional plasma surfacing method into
Row substantially improves, and existing plasma surfacing method is generally both provided with plasma arc pressure Height-adjusting device, plasma gun and workpiece
The distance on surface is not more than 15mm, and the scope of application is limited.And in the present invention, printing distance can be adjusted interior on a large scale, fit
It answers unlike material to print demand, and workpiece shaping quality can be effectively ensured.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of plasma founding rapid forming equipment of the present invention.
Fig. 2 is the structural schematic diagram 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 structural schematic diagram of the present invention into compression ring.
Fig. 5 is the structural schematic diagram of air inlet ring body of the present invention.
Fig. 6 is the flow diagram of plasma founding quick molding method of the present invention.
Fig. 7 is the structural schematic diagram of plasma gun in the embodiment of the present invention 2.
Reference sign:
1-feeder;2-are processed silk material;3-workpiece to be formed;
4-horizontal stamp pads;5-air supply pipes;6-wire trays;
7-plasma generator controllers;8-distance detection units;9-temperature detecting units;
10-printings are apart from adjusting control device;11-detection of gas flow rate units;
12-gas flow controllers;13-plasma guns;13-1-gun body;
13-2-anode nozzle;13-3-cathode;13-4-arc chamber;
13-5-spout;13-6-insulating layer;14-wire feed driving mechanisms;
15-positions adjust controller;16-three axis numerically controlled machines;17-upper and lower adjusting apparatus;
18-speed detection units;19-wire pushing rollers;20-wire feed rate controllers;
21-into compression ring;21-1-air inlet ring body;21-2-annular sealing cover;
21-3-annular air inlet duct;21-4-outside air admission hole;21-5-inside air admission hole;
22-three-dimensional regulation holders;23-PC machine;24-flow control valves;
25-electric walking mechanisms;26-traveling controllers;
27-walking position detection units;28-the linear guides.
Specific implementation mode
A kind of plasma founding rapid forming equipment as shown in Figure 1, by monitoring system, plasma beam system of processing and
Multiple print platform compositions printed respectively for multiple workpiece 3 to be formed, the structure all same of multiple print platforms;Each
The print platform includes the horizontal stamp pad 4 for supplying workpiece 3 to be formed to place, is adjusted to the position of horizontal stamp pad 4
Stamp pad position regulator and electric walking mechanism 25 mounted on stamp pad position regulator bottom, the water
Flat stamp pad 4 is installed on the stamp pad position regulator;The horizontal stamp pad 4 of multiple print platforms is respectively positioned on together
On one horizontal plane;Multiple print platforms are respectively positioned below the plasma beam system of processing, and multiple printings are flat
It is platform to be controlled to be located at the print platform immediately below the plasma beam system of processing in platform.
The plasma beam system of processing by be equipped with nozzle and for generate beam-plasma plasma generator,
The printing distance that the distance between the horizontal stamp pad 4 of outlet and the platform to be controlled to the nozzle is adjusted is adjusted
Device provides the feeder 1 of working gas for the plasma generator and for continuously sending out sending for processed silk material 2
Silk device forms;The plasma generator is located at 4 top of horizontal stamp pad and it is mounted on printing distance and adjusts dress
It sets, the wire feeder is located at 4 top of horizontal stamp pad and it is located at the plasma generator side;The gas supply dress
1 is set to connect with the air inlet opened on the plasma generator by air supply pipe 5;The outer end of the processed silk material 2 is
Melting end, the melting end is located at below the outlet of the nozzle and it is located on the central axis of the beam-plasma.It is described
It is printed material to be processed silk material 2.
The monitoring system includes the walking being respectively controlled to the electric walking mechanism 25 of multiple print platforms
Controller 26, multiple walking position detection units that the walking position of multiple print platforms is measured in real time respectively
Position adjustment controller 15 that 27, the stamp pad position regulator of multiple print platforms is respectively controlled,
Temperature detecting unit 9 that 3 upper surface temperature of workpiece to be formed on the platform to be controlled is measured in real time, to the spray
Distance detection unit 8 that outlet and the distance between the horizontal stamp pad 4 of the platform to be controlled of head are measured in real time and
To the printing that is controlled of printing distance adjusting means apart from adjusting control device 10, the electric walking of multiple print platforms
It walks mechanism 25 and multiple walking position detection units 27 is connect with traveling controller 26, the institute of multiple print platforms
It states stamp pad position regulator to connect with position adjustment controller 15, the printing is beaten apart from adjusting control device 10 with described
Distance adjusting means connection is printed, the temperature detecting unit 9 and distance detection unit 8 connect with printing apart from adjusting control device 10
It connects.The temperature detecting unit 9 forms temperature control device with printing apart from adjusting control device 10.
Occur as shown in figure 3, the monitoring system further includes the plasma controlled the plasma generator
Controller 7, the detection of gas flow rate unit 11 that the gas flow of air supply pipe 5 is measured in real time and to being installed on air supply pipe 5
The gas flow controller 12 that is controlled of flow control valve 24, the plasma generator controller 7 and the plasma
Generator connects, and the detection of gas flow rate unit 11 is connect with gas flow controller 12.The temperature detecting unit 9 is pair
The plasma beam system of processing infrared temperature that temperature is measured in real time at the print position on workpiece 3 to be formed passes
Sensor.The distance detection unit 8 is laser range sensor.
In the present embodiment, the quantity of the plasma beam system of processing is one.
As shown in Fig. 2, the plasma generator includes plasma gun 13, the nozzle is 13 front end of plasma gun
Anode nozzle 13-2;The plasma gun 13 includes being provided with the gun body 13-1 of the air inlet, immediately ahead of gun body 13-1
Anode nozzle 13-2 and the cathode 13-3, the anode nozzle 13-2 that are plugged in gun body 13-1 are located at the front sides cathode 13-3, institute
State that arc chamber 13-4 is located on front side of cathode 13-3 and it is located at the posterior medial of anode nozzle 13-2, the anode nozzle 13-2's
Front inner is spout 13-5;The anode nozzle 13-2, cathode 13-3 and arc chamber 13-4 are in coaxial cloth with gun body 13-1
If;The air inlet is located on rear side of gun body 13-1, the spout 13-5 and gun body 13-1 in it is coaxial lay or with the gun body 13-
Angle between 1 central axis is 30 °~45 °.
In actual use, the plasma gun 13 is mounted in the printing distance adjusting means.
In actual use, the plasma gun 13 can also use conventional other plasma guns.
In the present embodiment, insulating layer 13-6 is provided between the anode nozzle 13-2 and gun body 13-1.
In the present embodiment, as shown in Fig. 2, the spout 13-5 and gun body 13-1 is laid in coaxial.
In the present embodiment, the air supply pipe 5 is by into the air inlet opened on compression ring 21 and the plasma generator
Connection.Also, by uniformly being supplied into the plasma generator into compression ring 21.
As shown in Figure 4, Figure 5, it is described into compression ring 21 be circular ring shape and it include air inlet ring body 21-1 and lid be mounted in air inlet
There are one rings to be opened on circular ring shape and its madial wall by annular sealing cover 21-2, the air inlet ring body 21-1 on ring body 21-1
Open that there are one in the outside air admission hole 21-4 that connects with air supply pipe 5 and its on shape air inlet duct 21-3, the air inlet ring body 21-1
Side is provided with multiple inside air admission hole 21-5, and multiple inside air admission hole 21-5 are along the circumferential direction uniformly distributed and it is respectively positioned on ring
On the inside of shape air inlet duct 21-3, the outside air admission hole 21-4 is located on the outside of annular air inlet duct 21-3, the outside air admission hole 21-4
It is communicated with inside annular air inlet duct 21-3 with multiple inside air admission hole 21-5.
Also, it is along the circumferential direction provided with and multiple is communicated respectively with multiple inside air admission hole 21-5 on the gun body 13-1
Gun body air admission hole.
In actual use, the plasma gun 13 is mounted in the printing distance adjusting means.
During 13 use of plasma gun as shown in Figure 2, plasma is generated in the arc chamber 13-4, it is generated
Plasma forms beam-plasma and is sprayed through spout 13-5.
In the present embodiment, the working gas is inert gas or H2Gas.
Wherein, inert gas is Ar gas, He gas and N2Gas.
As shown in Figure 1, plasma 3D printing equipment of the present invention further includes the multiple print platforms of a confession
The walking track that electric walking mechanism 25 walks, the electric walking mechanism 25 of multiple print platforms are respectively positioned on the walking rail
On road, the electric walking mechanism 25 is the vehicle with walking machine for driving the print platform to be moved forward and backward along the walking track
Structure;The horizontal stamp pad 4 of multiple print platforms is laid from front to back along the length direction of the walking track.
In the present embodiment, the walking track is the linear guide 28 in horizontal layout.In actual use, the walking rail
Road can also use other types of track or sliding slot.Also, the horizontal stamp pad 4 of multiple print platforms is laid in together
On one straight line.
In actual use, the walking track can also use the rails such as arc, circle, ellipse, fold-line-shaped, square shape
Road.
In the present embodiment, the structure snd size all same of multiple print platforms.
Also, the electric walking mechanism 25 of each print platform includes multiple mounted on stamp pad position tune
Engagement positions bottom and the electric walking wheel being moved forward and backward along the walking track.
In the present embodiment, the stamp pad position regulator of multiple print platforms is three axis numerically controlled machine
16。
Thus, the position adjustment controller 15 is the controller of three axis numerically controlled machine 16.
In actual use, the stamp pad position regulator can also can complete X, Y and three directions of Z axis using other
The device of movement.
In the present embodiment, the quantity of the print platform is two.
In actual use, the quantity of the print platform can be adjusted accordingly according to specific needs.
In the present embodiment, the folder between the central axis and vertical plane of the beam-plasma that the plasma generator generates
Angle is not more than 45 °;It is described to print distance adjusting means to be carried out up and down to the nozzle along the central axis of the beam-plasma
Adjusting apparatus 17 up and down of adjustment, the distance detection unit 8 are to the central axis along the beam-plasma from the nozzle
The distance detection device that is measured in real time of the distance between the horizontal stamp pad 4 for exporting to the platform to be controlled.
In the present embodiment, the adjusting apparatus 17 up and down is Z-direction adjusting apparatus.
Also, the adjusting apparatus 17 up and down is telescopic hydraulic cylinder.
In the present embodiment, the central axis for the beam-plasma that the plasma generator generates is in vertically to laying.It is real
Border is in use, can according to specific needs, to the central axis and vertical plane of the beam-plasma that the plasma generator generates
Between angle adjust accordingly.
In the present embodiment, the wire feeder includes that top is wound with the wire tray 6 of processed silk material 2, to being processed silk material 2
The wire feeder conveyed and the wire feed driving mechanism 14 driven to the wire feeder, the wire feeder are located at silk
It is connect on the inside of disk 6 and with the wire feeder;The wire tray 6 is coaxially mounted in shaft and can be rotated around the shaft.
Meanwhile the wire feeder further includes the three-dimensional regulation holder that the wire feed direction for being processed silk material 2 is adjusted
22, the wire feeder is mounted on three-dimensional regulation holder 22.In actual use, existed respectively by the three-dimensional regulation holder 22
The wire feed direction for being processed silk material 2 is adjusted in X-axis, Y-axis and Z-direction.
In the present embodiment, the wire feeder be wire pushing roller 19, the wire pushing roller 19 include driving roller group and from
Dynamic roller group, the driving roller group include two actives for by wire feed driving mechanism 14 drive and rotation direction is opposite
Idler wheel, the driven roller group include that two rotation directions are opposite and be located at the driven roller of 2 both sides of processed silk material, institute
It states driving roller group and is located at driven roller group side, two driving rollers are located at 2 both sides of processed silk material.
In the present embodiment, the wire feed driving mechanism 14 is stepper motor.In actual use, by changing the step
The rotating speed of stepper motor carries out easy, quickly adjustment to the wire feed rate of the wire feeder.
Also, the wire feed rate of the wire feeder is at the uniform velocity.
In the present embodiment, the monitoring system further includes the speed being measured in real time to the wire feed rate for being processed silk material 2
Degree detection unit 18 and wire feed rate controller 20 that wire feed driving mechanism 14 is controlled, the speed detection unit 18 with
Wire feed rate controller 20 connects.
In the present embodiment, the monitoring system further includes multiple respectively to the horizontal stamp pad 4 of multiple print platforms
The stamp pad displacement monitor that is monitored of displacement, each stamp pad position monitoring device includes respectively to level
The first displacement detecting unit that displacement of the stamp pad 4 in X-axis, Y-axis and Z-direction is measured in real time, second displacement detection
Unit and third displacement detecting unit, first displacement detecting unit, second displacement detection unit and third displacement detecting list
Member is connect with position adjustment controller 15.
In the present embodiment, the plasma generator controller 7, position adjustment controller 15, is beaten gas flow controller 12
Print connects with the data processing equipment apart from adjusting control device 10 and wire feed rate controller 20, the data processing equipment
For PC machine 23.The feeder 1 carries out start-up and shut-down control by PC machine 23.
A kind of beam-plasma founding quick molding method as shown in FIG. 6, includes the following steps:
Step 1: workpiece three-dimensional stereo model to be formed obtains and hierarchy slicing processing:To multiple workpiece 3 to be formed
Three-dimensional stereo model acquisition and hierarchy slicing processing are carried out respectively;
Wherein, it when carrying out three-dimensional stereo model acquisition and hierarchy slicing processing to workpiece 3 to be formed described in any one, adopts
With data processing equipment and image processing module is called to obtain the three-dimensional stereo model of the workpiece 3 to be formed, recalls layering and cut
Piece module carries out hierarchy slicing to the three-dimensional stereo model of the workpiece 3 to be formed, and obtains multiple layerings of the workpiece 3 to be formed
Cross-sectional image;Multiple layering cross-sectional images are to be obtained after carrying out hierarchy slicing to the three-dimensional stereo model of the workpiece 3 to be formed
The images in multiple layering sections are obtained, multiple layering sections are uniformly distributed from the bottom to top;
The height all same of multiple workpiece to be formed 3;The three-dimensional stereo model of multiple workpiece 3 to be formed is divided
When layer slice, lift height all same and the quantity all same for obtaining layering cross-sectional image;
Step 2: scan path is filled:Path filling is scanned respectively to multiple workpiece 3 to be formed in step 1
Processing;
Wherein, when being scanned path filling processing to workpiece 3 to be formed described in any one, it is all made of the data processing
Equipment and calling described image processing module, multiple layering sectional views to the workpiece 3 to be formed obtained in step 1
As being respectively processed, and the scan path filling process in multiple layering sections is completed, obtains multiple layering sections
Scan path;
Step 3: printing path obtain and under pass:Multiple institutes in obtaining step one are distinguished using the data processing equipment
State the printing path of workpiece 3 to be formed;
Wherein, when obtaining the printing path of any one workpiece 3 to be formed, the data processing equipment is all in accordance with step
The scan path in multiple layering sections of the workpiece 3 to be formed obtained in two, obtains multiple institutes of the workpiece 3 to be formed
State the printing path in layering section, and the printing path in each layering section with the scan path phase in the layering section
Together;
Step 4: successively printing from the bottom to top:Multiple synchronizations of workpiece 3 to be formed are successively beaten from the bottom to top
Print;
Wherein, when successively being printed from the bottom to top to workpiece 3 to be formed described in any one, all in accordance with being obtained in step 3
The workpiece 3 to be formed it is multiple it is described layering sections printing paths successively printed from the bottom to top, obtain by it is multiple at
Finished workpart made of type layer stacks from the bottom to top;The shape layer for being located at bottommost in multiple shape layers is bottom;It is described
The quantity of shape layer is identical as the quantity in layering section of the workpiece 3 to be formed of this in step 1, multiple shape layers
Installation position is corresponded respectively with the installation position in multiple layering sections and its thickness all same, the layer of the shape layer
Thick identical as the distance between the two neighboring layering section, multiple layerings of the workpiece 3 to be formed of this in step 3 are cut
The printing path in face is respectively the printing path of multiple shape layers;
When successively being printed from the bottom to top to multiple synchronizations of workpiece 3 to be formed, process is as follows:
Step 401, bottom printing:The bottom of multiple workpiece 3 to be formed is printed respectively, and multiple described is waited for
The bottom Method of printing all same of shaping workpiece 3;After the completion of waiting for that the bottom of multiple workpiece 3 to be formed prints, into step
Rapid 402;
Wherein, when being printed to the bottom of workpiece 3 to be formed described in any one, include the following steps:
Step 4011, walking displacement:By traveling controller 26 to the electric walking mechanism 25 of multiple print platforms
It is respectively controlled, the plasma beam system of processing will be moved to for the print platform that the workpiece 3 to be formed prints
Underface;At this point, the print platform immediately below the plasma beam system of processing is platform to be controlled;
Step 4012, printing:The position adjustment controller 15 is according to the workpiece 3 to be formed acquired in step 3
The printing path of current institute printing shaping layer, is controlled and is driven to the stamp pad position regulator of the platform to be controlled
Horizontal stamp pad 4 is moved in the horizontal plane;In 4 moving process of horizontal stamp pad, plasma beam processing system
The plasma beam that interior band is melted liquid stream by system is continuously sprayed onto on horizontal stamp pad 4;Liquid stream to be melted (specifically flow to horizontal beat
Melting liquid stream on ink pad 4) solidify after, complete the print procedure of current institute's printing shaping layer;
Step 402, last layer printing:A upper shape layer for multiple workpiece 3 to be formed is printed respectively, and
The Method of printing all same of a upper shape layer for multiple workpiece 3 to be formed;
Wherein, when being printed to a upper shape layer for workpiece 3 to be formed described in any one, include the following steps:
Step 4021, walking displacement and horizontal stamp pad move down:It is flat to multiple printings to first pass through traveling controller 26
The electric walking mechanism 25 of platform is respectively controlled, described etc. by being moved to for the print platform that the workpiece 3 to be formed prints
The underface of ion beam current system of processing;At this point, the print platform immediately below the plasma beam system of processing
For platform to be controlled;Later, the position adjustment controller 15 is adjusted by controlling the stamp pad position of the platform to be controlled
Device, the horizontal stamp pad of drive 4 are once moved down and move down height and the shape layer in the vertical direction
Thickness is identical;
Step 4022, printing and synchronous temperature control:Position adjustment controller 15 is waited for according to acquired this in step 3
The printing path of current institute's printing shaping layer of shaping workpiece 3, to the stamp pad position regulator of the platform to be controlled into
Row controls and horizontal stamp pad 4 is driven to be moved in the horizontal plane;In 4 moving process of horizontal stamp pad, it is described it is equal from
The plasma beam that interior band is melted liquid stream by beamlet stream system of processing is continuously sprayed onto current printed next molding
On the upper surface of layer;Liquid stream to be melted (is specifically flow on the upper surface of current printed next shape layer
Melt liquid stream) solidify after, complete the print procedure of current institute's printing shaping layer;
In this step, in 4 moving process of horizontal stamp pad, by temperature detecting unit 9 to currently printed
The upper surface temperature of next shape layer is measured in real time and by detected temperature information synchronous driving to printing distance
Adjusting control device 10, while the outlet of the nozzle and the horizontal of the platform to be controlled are printed by distance detection unit 8
The distance between platform 4 is measured in real time and by the range information synchronous driving detected to printing apart from adjusting control device 10;
Temperature information that the printing is detected apart from adjusting control device 10 according to temperature detecting unit 9 and by control the printing away from
The distance between the horizontal stamp pad 4 of the platform to be controlled that exports of the nozzle is adjusted from regulating device, is made
The upper surface temperature of current printed next shape layer is not higher than the 0.6 of the material fusing point of the workpiece 3 to be formed
Times;
In 4 moving process of horizontal stamp pad described in step 4012 and step 4022, the wire feeder is by processed silk
Material 2 is continuously sent out, while by the beam-plasma of plasma beam system of processing generation to the melting end of processed silk material 2
It is melted, and makes the melting end melt the molten melt drop to be formed continuously and form liquid stream;The liquid stream is distributed in described
In beam-plasma, the interior plasma beam with melting liquid stream is formed;Also, the melting liquid stream the working gas (wait from
Beamlet includes unionized working gas) under the action of moved along the central axis of the beam-plasma;
Step 402 is repeated several times in step 403, until completing the printing of all shape layers of multiple workpiece 3 to be formed
Process obtains the finished workpart for multiple workpiece 3 to be formed that printing is completed.
In actual use, the wire feeder is synchronous wire feeding device.
The plasma beam that interior band is melted liquid stream by plasma beam system of processing described in step 4012 is continuously sprayed onto water
When on flat stamp pad 4, the melting liquid stream of interior band, which synchronizes, to be flow on horizontal stamp pad 4.Plasma beam described in step 4022 adds
The plasma beam of interior band melting liquid stream is continuously sprayed onto the upper table of current printed next shape layer by work system
When on face, the melting liquid stream of interior band, which synchronizes, to be flow on the upper surface of current printed next shape layer.
In the present embodiment, when being printed in step 4012 and step 4022, according to the cloth of multiple print platforms
If position from front to back or by rear to preceding sequence, to current institute's printing shaping layers of multiple workpiece 3 to be formed respectively into
Row printing.
Also, it will be moved to for the print platform that the workpiece 3 to be formed prints in step 4011 and step 4021 described
When the underface of plasma beam system of processing, by traveling controller 26 to the electric walking machine of multiple print platforms
Structure 25 is respectively controlled, and multiple print platforms is made to be moved along the walking track.
In the present embodiment, before successively being printed from the bottom to top in step 4, the root of data processing equipment elder generation described in step 1
According to the material fusing point that pre-establishes and printing range data library, and in conjunction with by parameter input unit pre-enter it is multiple described in
The Material Name of workpiece 3 to be formed is determined the basis printing distance of each workpiece 3 to be formed respectively;The parameter input
Unit connects with the data processing equipment;
The material fusing point and printing range information of various material are stored in the material fusing point and printing range data library,
The material fusing point and printing range information of each material include title, fusing point and the basis printing distance of this kind of material;
The basis printing distance is 5mm~1000mm, and material fusing point is higher, and basis printing distance is closer;
Before being printed in step 4012, the printing is examined apart from adjusting control device 10 according to distance detection unit 8
The range information of survey and the printing distance adjusting means by controlling the platform to be controlled, by the outlet of the nozzle with
The distance between the horizontal stamp pad 4 of the platform to be controlled is adjusted to the basis printing distance of the workpiece 3 to be formed;Step
In rapid 4012 in print procedure, the distance between the outlet of the nozzle and the horizontal stamp pad 4 of the platform to be controlled are should
The basis printing distance of workpiece 3 to be formed;
Before carrying out printing and synchronizing temperature control in step 4022, the printing is detected apart from adjusting control device 10 according to distance
Range information that unit 8 is detected simultaneously combines moving down number and moving down height every time for horizontal stamp pad 4, and passes through
The printing distance adjusting means for controlling the platform to be controlled, by the outlet of the nozzle with it is currently printed next
The distance between the upper surface of a shape layer is adjusted to the basis printing distance of the workpiece 3 to be formed;Step 4022
In when the outlet of the nozzle is adjusted with the distance between the horizontal stamp pad 4 of the platform to be controlled, the printing
What the temperature information and combination distance detection unit 8 detected according to temperature detecting unit 9 apart from adjusting control device 10 was detected
The distance between the horizontal stamp pad 4 of the platform to be controlled that exports of the nozzle is adjusted in range information, makes to work as
0.1 times of material fusing point in the workpiece 3 to be formed of the upper surface temperature control of preceding printed next shape layer
Between~0.6 times;Also, the distance between the outlet of the nozzle and the horizontal stamp pad 4 of the platform to be controlled are carried out
When adjusting, the amplitude of accommodation is 5mm~60mm, and the material fusing point of the workpiece 3 to be formed is higher, and the amplitude of accommodation is smaller;
The range information that the distance detection unit 8 is detected is the water of the outlet and the platform to be controlled of the nozzle
The distance between flat stamp pad 4.
In the present embodiment, before successively being printed from the bottom to top in step 4, the root of data processing equipment elder generation described in step 1
According to the gas flow and wire feed rate database pre-established, and in conjunction with the thickness of the preset shape layer, to gas supply
The base gas flow of pipe 5 and the wire feed rate of the wire feeder are determined;
The gas flow and wire feed rate databases contain the wire feed speed needed for the shape layer of a variety of different thickness
Degree and base gas flow;The base gas flow is 5ml/min~500ml/min, and the wire feed of the wire feeder is fast
Degree is bigger, and the base gas flow is bigger;
In 4 moving process of horizontal stamp pad described in step 4012 and step 4022, the speed detection unit 18 is to institute
The wire feed rate for stating wire feeder is measured in real time and by institute's detection information synchronous driving to wire feed rate controller 20, described
Wire feed rate controller 20 is examined according to the wire feed rate and combination speed detection unit 18 of the predetermined wire feeder
Measurement information controls wire feed driving mechanism 14, make the wire feed rate of the wire feeder with predetermined wire feed rate
It is identical;
Before being printed in step 4012, the gas flow controller 12 is examined according to detection of gas flow rate unit 11
Measurement information and by control flow control valve 24 gas flow of air supply pipe 5 is adjusted to the base gas flow;Step
In 4012 in print procedure, the gas flow of the air supply pipe 5 is the base gas flow;
It carries out printing in step 4022 and synchronize in temperature control process, the gas flow controller 12 is examined according to gas flow
It surveys 11 detection informations of unit and combines 8 detecting distance information of distance detection unit, and is right by controlling flow control valve 24
The gas flow of air supply pipe 5 is increased and decreased adjustment;Also, the horizontal stamp pad of the outlet and the platform to be controlled of the nozzle
The distance between 4 is bigger, and the gas flow of the air supply pipe 5 is bigger.
In the present embodiment, when obtaining the three-dimensional stereo model of the workpiece 3 to be formed, pro/e, UG, CATIA etc. three is utilized
Dimension graphics software designs the three-dimensional stereo model (i.e. three-dimensional entity model) of workpiece 3 to be formed, then passes through the hierarchy slicing
Module carries out hierarchy slicing to the three-dimensional stereo model, and obtains the outline data in each section, and generating filling by outline data sweeps
Path is retouched, the corresponding printing path (printing path in i.e. each layering section) for obtaining three axis numerically controlled machine 16.Thus, step 1 and
Method employed in step 2, the method phase used with the molding of conventional laser selective melting or electron beam selective melting molding
Together.Later, the three axis numerically controlled machine 16 carries out X in the horizontal plane according to the printing path obtained and Y direction is moved through
Cheng Zhong, the plasma beam that interior band is melted liquid stream by the plasma beam system of processing are continuously sprayed onto the platform to be controlled
On horizontal stamp pad 4 or on the upper surface of current printed next shape layer;It is complete after melting liquid stream solidifies
At the print procedure of a shape layer;Then, the three axis numerically controlled machine 16 declines in the Z-axis direction, successively prints, to complete
At the print procedure of 3 d part.
Since horizontal stamp pad 4 is mobile platform on stamp pad position regulator, thus institute in step 3
The printing path in each of the acquisition layering section can also be the machining path of three axis numerically controlled machine 16, described at this time etc.
Ion beam current system of processing does not move in the horizontal plane, but is moved by horizontal stamp pad 4 is upper in terms of level, from
And complete the print procedure of each shape layer.
In the present embodiment, in 4 moving process of horizontal stamp pad described in step 4012 and step 4022, the processed silk
The wire feed rate of a diameter of 0.02mm~10mm of material 2, the processed silk material 2 are 0.1m~10m/min.Wherein, it is processed
The diameter of silk material 2 is bigger, and wire feed rate is slower;And the material fusing point for being processed silk material 2 is higher, wire feed rate is slower.
The distance between the melting end of the processed silk material 2 and print job face are 5mm~1000mm.Wherein, it prints
Working face is the plane residing for current institute's printing shaping layer, is processed between the melting end and the print job face of silk material 2
Distance is wire feed height.
It, will be between the melting end of processed silk material 2 and horizontal stamp pad 4 before successively being printed from the bottom to top in step 4
Distance is adjusted to preset wire feed height, and the wire feed height is 5mm~1000mm;It is successively beaten from the bottom to top in step 4
During print, the fusing end position for being processed silk material 2 is motionless.The melting end that silk material 2 is processed in step 4012 is printed with horizontal
The distance between platform 4 is wire feed height, and the melting end of silk material 2 and current printed next institute are processed in step 4022
It is wire feed height to state the distance between shape layer upper surface.
Embodiment 2
In the present embodiment, as shown in fig. 7, used plasma founding rapid forming equipment is as different from Example 1:
Angle between the spout 13-5 and gun body 13-1 central axis is 30 °~45 °.
In this way, after being changed to the direction of the beam-plasma by spout 13-5, plasma jet can be effectively reduced
To the thermic load impact that anode nozzle 13-2 is generated, anode ablation situation is improved.
In the present embodiment, rest part structure, connection relation and the work of used plasma founding rapid forming equipment
Principle is same as Example 1.
In the present embodiment, used plasma founding quick molding method is same as Example 1.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.