CN106799494B - More galvanometer big width laser selective meltings equipment of clarifying smoke effect can be improved - Google Patents
More galvanometer big width laser selective meltings equipment of clarifying smoke effect can be improved Download PDFInfo
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- CN106799494B CN106799494B CN201611263910.4A CN201611263910A CN106799494B CN 106799494 B CN106799494 B CN 106799494B CN 201611263910 A CN201611263910 A CN 201611263910A CN 106799494 B CN106799494 B CN 106799494B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/77—Recycling of gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/49—Scanners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/70—Gas flow means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of more galvanometer big width laser selective meltings equipment that can improve clarifying smoke effect, which includes work chamber body, workbench, forming cylinder component, powdering component, galvanometer combination, mobile subregion clarifying smoke component, protective atmosphere regulatory component and control system；Mobile subregion clarifying smoke component is combined with galvanometer to be separately included M (M >=1) group and pumps gas port and M row galvanometer queues, gas port is pumped for every group to match with a row galvanometer queue, so that every group is pumped gas port all and can generate stable, uniform air-flow above the smaller irradiation zone of corresponding area, to ensure that the flue dust above entire metal powder layer can be by time, be effectively cleared up, process stability when the more galvanometer big width laser selective meltings equipment forming large scale parts of significant increase.
Description
Technical field
The invention belongs to increases material manufacturing technology fields, and in particular to a kind of more galvanometers that can improve clarifying smoke effect are substantially
Face selective laser fusing equipment.
Background technology
Selective laser fusing is a kind of increases material manufacturing technology, and high energy density laser beam is exported using galvanometer system, right
The metal powder layer successively laid implements selective melting, and then completes the forming of metal parts.Have benefited from above-mentioned operation principle,
Selective laser smelting technology has the series of advantages such as flexibility degree is high, properties of product are excellent, adaptability for materials is extensive, and can
Forming conventional machining means are difficult to the labyrinth metal product manufactured.
In the selective laser smelting technology early stage of development, the selective melting of metal powder is usually only shaken by a set of position is fixed
Mirror system is completed, and causes forming efficiency relatively relatively low, strongly limits the size of the forming breadth and formable part of equipment.For
Make up the deficiency, team where inventor grind and propose " more galvanometer selective lasers melting method (CN102266942A,
CN104001915A) ", basic ideas can be summarized by Fig. 1：More set galvanometer systems are introduced in selective laser fusing equipment, and
It is arranged by row, constitutes galvanometer combination；When Prototyping Metal Parts, the combination of control galvanometer synchronizes metal powder layer implementation and sweeps
It retouches；If the effective irradiation region of galvanometer combination cannot cover entire metal powder layer, it is effective to its first to control galvanometer combination
Metal powder layer in irradiation zone implements synchronous scanning, then galvanometer combination is moved on the metal powder layer not yet scanned
Side, final election area fusion process of laying equal stress on, until completing the selective melting of entire metal powder layer.Pass through the above method, selective laser
The processing efficiency of smelting technology is obviously improved, and team where inventor and other domestic and international mechanisms also have developed one in succession
The more galvanometer big width laser selective melting equipments of series, metal powder layer lay the length and width and the three of formable metal parts of breadth
Dimension size has moved closer to even up to " rice " grade.
It must be pointed out that in the fusion process of selective laser, can be inevitably generated above metal powder layer a large amount of
Flue dust.Only in time by clarifying smoke, the constant of incident laser beam energy density could be maintained and the clean and tidy of nacelle that work, in turn
Ensure the stability of forming process.Therefore, it is either equipped by the conventional laser selective melting that a set of galvanometer system is constituted, still
Novel more galvanometer big width laser selective meltings equipment, shaped region are generally all followed by bleeding point, air taking port with containing
Ring wind turbine is connected with the clarifying smoke host of porous filter medium/liquid filtration media.During part forming, clarifying smoke
Host computer circulating fan extracts the gas containing flue dust above metal powder layer from bleeding point out, by porous filter medium/
Gas without flue dust is re-fed into above metal powder layer by liquid filtration media by after filtrating smoke dust, then via air taking port.
However, as shown in Figure 1, usually only one group of the bleeding point and air taking port of existing more galvanometer big width laser selective meltings equipment,
And it is individually fixed in the front and rear sides of metal powder layer.When Prototyping Metal Parts, position fixes, bleeding point apart from each other with
Air taking port can not usually generate stable, uniform air-flow above the larger metal powder layer of breadth so that clarifying smoke effect
Not satisfactory, thus caused forming failure or product quality deteriorate case and emerge one after another.
Based on above-mentioned background, a kind of more galvanometer big width laser selective meltings dress that can improve clarifying smoke effect is developed
It is standby to be of great significance.
Invention content
Against the above deficiency, the invention discloses a kind of more galvanometer big width lasers constituencies that can improve clarifying smoke effect
Fusing equipment, it is intended to promote the selective laser fusing forming quality of large scale metal parts.
A kind of more galvanometer big width laser selective meltings equipment that can improve clarifying smoke effect provided by the invention, it is special
Sign is that the equipment includes work chamber body, workbench, forming cylinder component, powdering component, galvanometer combination, mobile subregion cigarette
Dirt purification assembly, protective atmosphere regulatory component and control system；
The work nacelle is for laser irradiation region domain to be isolated with external environment；The workbench is located at work nacelle
Inside, workbench upper surface keep horizontal；
The forming cylinder component is located inside work chamber body, is made of formation cylinder and substrate；Wherein, formation cylinder is installed on work
Make Platform center, formation cylinder upper surface and workbench upper surface are coplanar；Substrate can be in the vertical side in cylinder interior edge of formation cylinder
To reciprocating motion；
The powdering component is located inside work chamber body, for laying the controllable metal powder of thickness in formation cylinder upper surface
Layer；
The galvanometer combination is located inside work chamber body or work nacelle top；Galvanometer combination includes uniform in left-right direction
The M row galvanometer queues of arrangement and galvanometer transmission mechanism, M >=1；The queue of each column galvanometer all includes equally distributed along the longitudinal direction
N covers galvanometer system, N >=2；Galvanometer system in each column galvanometer queue workbench upper surface effective irradiation region along front and back
Direction close-packed arrays, and front and back adjacent effective irradiation region contacts with each other just, the effective irradiation region of these galvanometer systems
Together constitute the effective irradiation region of the row galvanometer queue；Under the drive of galvanometer transmission mechanism, all galvanometer queues can be
Synchronizing moving in left-right direction above workbench；
The movable type subregion clarifying smoke component includes pumping gas port, gas circulation channel and gas port transmission mechanism；
Wherein, it pumps gas port and shares and M groups and be respectively positioned on inside work chamber body, every group, which is pumped gas port, includes a bleeding point and supply gas
Mouthful；The equipment that gas port is matched by gas circulation channel with outside work chamber body is pumped for every group to carry or outside match
Clarifying smoke host be connected；Every group pump gas port can gas port transmission mechanism drive under above workbench along right and left
It is moved back and forth to vertical direction；Same group is pumped in gas port, and the pumping direction of bleeding point is identical as the air supply direction of air taking port,
And it is parallel with equipment left and right directions；Gas port is pumped for every group to match with a row galvanometer queue；And with the galvanometer queue that matches
There are following relationships：1) it is pumped in gas port at same group, vertical projection point of the bleeding point with air taking port in workbench upper surface
Wei Yu not match galvanometer queue workbench upper surface effective irradiation region the left and right sides；2) clarifying smoke host is opened
Afterwards, it pumps and is formed by vertical projection of the airflow field in workbench upper surface between gas port and can will match galvanometer queue for every group
Effective irradiation region overlay in workbench upper surface；
The atmosphere regulatory component is used to provide inertia environmental protection for laser irradiation region domain；
The control system generates galvanometer array sweeping track, and drive equipment for handling part C AD models to be formed
Interior remaining part operation.
Compared with prior art, the present invention has the following technical effects：
(1) present invention uses mobile subregion clarifying smoke component, and by every group of mobile subregion clarifying smoke component
The row galvanometer queue pumped during gas port is combined with galvanometer matches so that pumping gas port for every group all can be in corresponding face
Stable, uniform air-flow is generated above the smaller laser irradiation region domain of product, to ensure the flue dust above entire metal powder layer
Can be by time, be effectively cleared up, the more galvanometer big width laser selective meltings equipment forming large scale parts of significant increase
When process stability；
(2) being obviously improved due to clarifying smoke effect, selective laser are melted and are shaped in parts inside armament-related work cabin
Remain clean in the process so that the sampling after forming reduces with cleaning work difficulty, danger reduces；
(3) invention way of realization is simple, and operating cost is cheap, portable strong.
Description of the drawings
Fig. 1 is existing more galvanometer selective laser melting method schematic diagrames；
Fig. 2 is a kind of more galvanometer big width laser selective meltings dress that can improve clarifying smoke effect that embodiment 1 provides
Standby schematic diagram；
Fig. 3 is every group and pumps gas port and the galvanometer queue correlation schematic diagram that matches；
Fig. 4 is a kind of more galvanometer big width laser selective meltings dress that can improve clarifying smoke effect that embodiment 2 provides
Standby schematic diagram.
Figure label explanation：1- galvanometer systems；2- holders；3- the first dedusting telescopic rods；4- bleeding points；5- air taking ports；6-
First galvanometer guide rail；7- the second galvanometer guide rails；The first powder storage chambers of 8-；The second powder storage chambers of 9-；10- the first powdering guide rails；11- second
Powdering guide rail；12- Powder spreaders；13- workbenches；14- formation cylinders；15- substrates；16- work nacelles；17- protects air source；18-
Clarifying smoke host；19- gas circulation channels；20- protective gas transmission channels；21- bleeding points are in workbench upper surface
Vertical projection；Vertical projection of the 22- air taking ports in workbench upper surface；23- galvanometer systems have workbench upper surface
Imitate irradiation zone；24- transmission lens；25- the first dedusting guide rails；26- the second dedusting guide rails；27- the second dedusting telescopic rods.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
A kind of more galvanometer big width laser selective meltings equipment that can improve clarifying smoke effect provided by the invention, it is special
Sign is that the equipment includes work chamber body, workbench, forming cylinder component, powdering component, galvanometer combination, mobile subregion cigarette
Dirt purification assembly, protective atmosphere regulatory component and control system；
The work nacelle is for laser irradiation region domain to be isolated with external environment；
The workbench is located inside work chamber body；The upper surface of workbench keeps horizontal, the laying of metal powder
It is carried out in workbench upper surface with selective melting；
The forming cylinder component is located inside work chamber body, is made of formation cylinder and substrate；Wherein, formation cylinder is installed on work
Make Platform center, formation cylinder upper surface and workbench upper surface are coplanar；Substrate can be in the vertical side in cylinder interior edge of formation cylinder
To reciprocating motion；
The powdering component is located inside work chamber body, and powdering component is installed on workbench upper surface and workbench
Side；Forming cylinder component is provided commonly for successively for metal powder being laid down into workbench upper surface with powdering component；Its structure uses
The prior art.
Powdering component described in present example may include that the first powder storage chamber, the second powder storage chamber, Powder spreader and powdering pass
Motivation structure；First powder storage chamber and the second powder storage chamber are placed at the top of work nacelle, and vertical projection is respectively fallen on workbench
The left and right sides on surface；Powder spreader can back and forth move under the drive of powdering transmission mechanism in workbench upper surface in left-right direction
It is dynamic；When Powder spreader is moved to below the first powder storage chamber and the second powder storage chamber, the first powder storage chamber and the second powder storage chamber can be powdering
Device provides the metal powder of controllable quantity；It, can after Powder spreader receives the first powder storage chamber and the provided metal powder of the second powder storage chamber
The controllable metal powder layer of thickness is laid in formation cylinder upper surface；
The galvanometer combination can not only be located inside work chamber body, but also can be located above work nacelle；Galvanometer is combined by along a left side
Evenly arranged M row (M >=1) the galvanometer queues of right direction and galvanometer transmission mechanism composition；The queue of each column galvanometer all includes along preceding
The equally distributed N of rear direction covers (N >=2) galvanometer system；Galvanometer system in each column galvanometer queue is in workbench upper surface
Effective irradiation region close-packed arrays along the longitudinal direction, and front and back adjacent effective irradiation region contacts with each other just, these galvanometers
The effective irradiation region of system together constitutes the effective irradiation region of the row galvanometer queue；Under the drive of galvanometer transmission mechanism,
All galvanometer queues can above workbench synchronizing moving in left-right direction；
The movable type subregion clarifying smoke component is by pumping gas port, gas circulation channel and gas port transmission mechanism group
At；Wherein, it pumps gas port and shares and M groups and be respectively positioned on inside work chamber body, every group, which is pumped gas port, includes a bleeding point and send
Gas port；Every group to pump the equipment that gas port is matched by gas circulation channel with outside the work chamber body included or outer
The clarifying smoke host matched is connected；The internal structure of every clarifying smoke host is all made of the prior art, can shake with existing more
The internal structure of mirror big width laser selective melting equipment corresponding component is identical；Pumping gas port for every group can be in gas port transmission mechanism
It is moved back and forth in left-right direction with vertical direction above workbench under drive；Same group is pumped in gas port, the pumping of bleeding point
Gas direction is identical as the air supply direction of air taking port, and parallel with equipment left and right directions；Every group pump gas port with a row galvanometer team
Row match；And there are following relationships with the galvanometer queue that matches：1) it pumps in gas port for same group, bleeding point exists with air taking port
The vertical projection of workbench upper surface is located at the galvanometer queue that matches in workbench upper surface effective irradiation region
The left and right sides；2) it after clarifying smoke host is opened, pumps for every group and is formed by airflow field in workbench upper surface between gas port
Vertical projection can will match effective irradiation region overlay of the galvanometer queue in workbench upper surface；
The atmosphere regulatory component is used to provide inertia environmental protection for laser irradiation region domain, can be by protection air source and protection
Gas delivery passage is constituted；Wherein, protection air source is located at outside work chamber body, is irradiated for laser by protective gas transmission channel
Region provides inertia environmental protection；
The control system is connect by electric signal with equipment rest part, raw for handling part C AD models to be formed
At galvanometer array sweeping track, and drive equipment remaining part operation.
It should be pointed out that in the present invention, in addition to galvanometer combination and mobile subregion clarifying smoke component, remaining part it is specific
Structure does not do particular/special requirement, and the prior art may be used, and such as existing more galvanometer big width laser selective meltings is selected to set respectively
Standby corresponding component.
Since the every group of bleeding point and the distance between air taking port of equipment provided by the present invention are smaller, in form metal zero
When part, it is more stable, uniform to be formed by airflow field；At the same time, pumping the difference in height of gas port and metal powder layer can also appoint
Meaning is adjusted, therefore the galvanometer queue that will can match effectively, in time irradiates generated clarifying smoke above metal powder layer.
Embodiment 1
A kind of more galvanometer big width laser selective meltings equipment that can improve clarifying smoke effect, as shown in Fig. 2, its feature
It is, which includes work chamber body 16, workbench 13, forming cylinder component, powdering component, galvanometer combination, mobile subregion
Clarifying smoke component, protective atmosphere regulatory component and control system；
The work nacelle 16 is for laser irradiation region domain to be isolated with external environment；
The workbench 13 is located inside work nacelle 16, and the upper surface of workbench 13 keeps horizontal；
The forming cylinder component is located inside work nacelle 16, is made of formation cylinder 14 and substrate 15；Wherein, formation cylinder 14
It is installed on 13 center of workbench, 14 upper surface of formation cylinder and 13 upper surface of workbench are coplanar；Substrate 15 can be in formation cylinder 14
Cylinder interior vertically move back and forth；
The powdering component is located inside work nacelle 16, by the first powder storage chamber 8, the second powder storage chamber 9, Powder spreader 12,
One powdering guide rail 10 and the second powdering guide rail 11 composition；First powder storage chamber 8 and the second powder storage chamber 9 be placed in work nacelle 17 top
Portion, vertical projection respectively fall in the left and right sides of 13 upper surface of workbench；First powdering guide rail 10 and the second powdering guide rail
11 are installed on the rear and front end of 13 upper surface of workbench, can drive Powder spreader 12 13 upper surface of workbench in left-right direction
It moves back and forth；When Powder spreader 12 is moved to the first powder storage chamber 8 and the second 9 lower section of powder storage chamber, the first powder storage chamber 8 and second stores up powder
Room can be the metal powder that Powder spreader 12 provides controllable quantity；Powder spreader 12 receives the first powder storage chamber 8 and the second powder storage chamber is carried
After metal powder, the controllable metal powder layer of thickness can be laid in 14 upper surface of formation cylinder；
The galvanometer combination is located inside work chamber body 16, by the first galvanometer guide rail 6, the second galvanometer guide rail 7 and along left and right
Evenly arranged M row (M >=1) the galvanometer queue composition in direction；First galvanometer guide rail 6 and the second galvanometer guide rail 7 are installed on work chamber
The inner wall of 17 front and rear sides of body can drive all galvanometer queues synchronizing moving in left-right direction above workbench；Each column is shaken
Mirror queue all includes to be mounted on holder 2 and equally distributed N covers (N >=2) galvanometer system 1 along the longitudinal direction；As shown in figure 3,
Galvanometer system 1 in each column galvanometer queue is closely arranged along the longitudinal direction in the effective irradiation region 23 of 13 upper surface of workbench
Row, and front and back adjacent effective irradiation region 23 contacts with each other just, these effective irradiation regions 23 together constitute each column and shake
The effective irradiation region of mirror queue；
The movable type subregion clarifying smoke component is by pumping gas port, clarifying smoke host 18,19 and of gas circulation channel
First dedusting telescopic rod 3 forms；Wherein, it pumps gas port and shares M groups, be made of bleeding point 4 and air taking port 5, and be respectively positioned on work
Make inside nacelle 16；Every group of pump that gas port is matched by gas circulation channel 19 with outside the work nacelle 16 one
Clarifying smoke host 18 is connected；The internal structure of every clarifying smoke host 18 is molten with existing more galvanometer big width lasers constituency
The internal structure for changing equipment corresponding component is identical；Same group is pumped in gas port, the pumping direction of bleeding point 4 and sending for air taking port 5
Gas direction is identical, and parallel with equipment left and right directions；It pumps gas port and is installed on by the first dedusting telescopic rod 3 for every group and match
2 lower section of holder of galvanometer queue, and deposit relationship shown in Fig. 3 with the galvanometer queue to match：1) it pumps in gas port for same group, takes out
It is flat in work that vertical projection 21,22 of the gas port 4 with air taking port 5 in 13 upper surface of workbench is located at the galvanometer queue that matches
The left and right sides in 13 upper surface effective irradiation region of platform；2) after clarifying smoke host 19 is opened, every group is pumped institute's shape between gas port
At vertical projection of the airflow field in 13 upper surface of workbench can will match galvanometer queue in 13 upper surface of workbench
Effective irradiation region overlay；Wherein, it pumps and is formed by airflow field in the vertical of 13 upper surface of workbench between gas port for every group
It projects left and right directions length L3 and effective irradiation region left and right directions of the galvanometer queue in 13 upper surface of workbench that match is long
The difference for spending L1 is preferably 1~20cm；It pumps for every group and is formed by airflow field between gas port in the perpendicular of 13 upper surface of workbench
Deliver directly shadow front-rear direction length L4 and effective irradiation region front-rear direction of the galvanometer queue in 13 upper surface of workbench that match
The difference of length L2 is preferably 1~20cm；
The atmosphere regulatory component is made of protection air source 17 and protective gas transmission channel 20；Wherein, air source 17 is protected
Outside work nacelle 16, inertia environmental protection is provided for laser irradiation region domain by protective gas transmission channel 20；
The control system is connect by electric signal with equipment rest part, raw for handling part C AD models to be formed
At galvanometer array sweeping track, and drives and equip the operation of its remaining part.
During powdering, gas port is pumped by every group using the first dedusting telescopic rod 3 and promoted, sent out to avoid with Powder spreader 12
Raw collision；After the completion of powdering, the first dedusting telescopic rod 3 is recycled to lower the height for pumping gas port, and it is net to open all flue dust
Change host 18, and then form air-flow uniformly, stable above all galvanometer queue irradiation zones, realizes that effective flue dust is net
Change.
Embodiment 2
A kind of more galvanometer big width laser selective meltings equipment that can improve clarifying smoke effect, as shown in figure 4, its feature
It is, which includes work chamber body 16, workbench 13, forming cylinder component, powdering component, galvanometer combination, mobile subregion
Clarifying smoke component, protective atmosphere regulatory component and control system；
For the work nacelle 16 for laser irradiation region domain to be isolated with external environment, top is equipped with transmission lens
24；
The workbench 13, forming cylinder component, the composition of powdering component, position are same as Example 1；
The galvanometer combination is located at outside work chamber body 16, by the first galvanometer guide rail 6, the second galvanometer guide rail 7 and along left and right
Evenly arranged M row (M >=1) the galvanometer queue composition in direction；First galvanometer guide rail 6 and the second galvanometer guide rail 7 are installed on work chamber
The top of 17 light-transmission top eyeglass 24 of body can drive all galvanometer queues synchronizing moving in left-right direction above workbench；
The queue of each column galvanometer all includes to be mounted on holder 2 and equally distributed N covers (N >=2) galvanometer system 1 along the longitudinal direction；Such as Fig. 3
Shown, the galvanometer system 1 in each column galvanometer queue is tight along the longitudinal direction in the effective irradiation region 23 of 13 upper surface of workbench
Solid matter arranges, and front and back adjacent effective irradiation region 23 contacts with each other just, and then constitutes the effective irradiation of each column galvanometer queue
Region；
The movable type subregion clarifying smoke component is by pumping gas port, clarifying smoke host 18, gas circulation channel 19, the
One dedusting guide rail 25, the second dedusting guide rail 26 and the second dedusting telescopic rod 27 composition；Wherein, it pumps gas port and shares M groups and equal position
Inside work nacelle 16, it includes a bleeding point 4 and air taking port 5 to pump gas port for every group；It pumps gas port for every group and passes through gas
The clarifying smoke host 18 that body circulation channel 19 matches with outside work nacelle 16 is connected；Every clarifying smoke master
The internal structure of machine 18 is all made of the prior art, can be with existing more galvanometer big width laser selective melting equipment corresponding components
Internal structure is identical；Same group is pumped in gas port, and the pumping direction of bleeding point 4 is identical as the air supply direction of air taking port 5, and with dress
Standby left and right directions is parallel；Every group of rear and front end for pumping gas port respectively with the first dedusting guide rail 25,26 phase of the second dedusting guide rail
Even, the first dedusting guide rail 25, the second dedusting guide rail 26 then with 27 phase of the second dedusting telescopic rod that is installed on the top of work nacelle 16
Even；Under the drive of the first dedusting guide rail 25, the second dedusting guide rail 26 and the second dedusting telescopic rod 27, pumping gas port for every group can be
13 top of workbench is moved back and forth with vertical direction in left-right direction；Every group pump gas port and a row galvanometer queue phase
Match, and is remained shown in Fig. 3 with the galvanometer queue to match by the movement of left and right directions in the fusion process of selective laser
Relationship meets：1) it pumps in gas port for same group, vertical projection of the bleeding point 4 with air taking port 5 in 13 upper surface of workbench
21,22 be located at match galvanometer queue 13 upper surface effective irradiation region of workbench the left and right sides；2) flue dust is net
Change after host 18 opens, every group pump vertical projection of the airflow field in 13 upper surface of workbench is formed by between gas port can will
Match galvanometer queue 13 upper surface of workbench effective irradiation region overlay；Wherein, institute's shape between gas port is pumped for every group
At vertical projection left and right directions length L3 of the airflow field in 13 upper surface of workbench it is flat in work with the galvanometer queue that matches
The difference of the effective irradiation region left and right directions length L1 of 13 upper surface of platform is preferably 1~20cm；Every group is pumped institute between gas port
Vertical projection front-rear direction length L4 of the airflow field of formation in 13 upper surface of workbench is working with the galvanometer queue that matches
The difference of the effective irradiation region front-rear direction length L2 of 13 upper surface of platform is preferably 1~20cm；
The atmosphere regulatory component and control system are same as Example 1；
During powdering, using the second dedusting telescopic rod 27 by every group pump gas port promoted, to avoid with Powder spreader 12
It collides；After the completion of powdering, the second dedusting telescopic rod 27 is recycled to lower the height for pumping gas port, and open all flue dust
Purification main frame 19, and then air-flow that is uniform, stablizing is formed above all galvanometer queue irradiation zones, realize that effective flue dust is net
Change.
The foregoing is merely the preferred embodiments of the present invention, the present invention should not be limited to disclosed in examples detailed above and attached drawing
Content.It is every not depart from the lower equivalent or modification completed of spirit disclosed in this invention, still should be regarded as the scope of the present invention it
It is interior.
Claims (9)
1. a kind of more galvanometer big width laser selective meltings equipment that can improve clarifying smoke effect, which is characterized in that the equipment
Including work nacelle (16), workbench (13), forming cylinder component, powdering component, galvanometer combination, mobile subregion clarifying smoke
Component, protective atmosphere regulatory component and control system；
The work nacelle (16) is for laser irradiation region domain to be isolated with external environment；The workbench (13) is located at work
Inside nacelle, workbench (13) upper surface keeps horizontal；
The forming cylinder component is located at work nacelle (16) inside, is made of formation cylinder (14) and substrate (15)；Wherein, formation cylinder
It is installed on workbench (13) center, formation cylinder (14) upper surface and workbench (13) upper surface are coplanar；Substrate (15) can be
The cylinder interior of formation cylinder (14) vertically moves back and forth；
The powdering component is located at work nacelle (16) inside, for laying the controllable metal of thickness in formation cylinder (14) upper surface
Powder bed；
The galvanometer combination is located above work chamber body (16) inside or work nacelle (16)；Galvanometer combination includes in left-right direction
Evenly arranged M row galvanometer queue and galvanometer transmission mechanism, M >=1；The queue of each column galvanometer all includes uniformly to divide along the longitudinal direction
The N set galvanometer systems (1) of cloth, N >=2；The effective irradiation of galvanometer system (1) in each column galvanometer queue in workbench upper surface
Region (23) close-packed arrays along the longitudinal direction, and front and back adjacent effective irradiation region (23) contacts with each other just, these galvanometers
The effective irradiation region (23) of system (1) together constitutes the effective irradiation region of the row galvanometer queue；In galvanometer transmission mechanism
Under drive, all galvanometer queues can above the workbench (13) synchronizing moving in left-right direction；
The movable type subregion clarifying smoke component includes pumping gas port, gas circulation channel (19) and gas port transmission mechanism；
Wherein, it pumps gas port and shares and M groups and be respectively positioned on inside work chamber body, every group, which is pumped gas port, includes a bleeding point (4) and send
Gas port (5)；Every group of pump that gas port is matched by gas circulation channel (19) with outside the work nacelle (16) one
The clarifying smoke host (18) that equipment carries or matches outside is connected；Pumping gas port for every group can be under the drive of gas port transmission mechanism in work
Make to move back and forth with vertical direction in left-right direction above platform (13)；Same group is pumped in gas port, the pumping side of bleeding point (4)
To identical as the air supply direction of air taking port (5), and it is parallel with equipment left and right directions；Every group pump gas port with a row galvanometer queue
Match；And there are following relationships with the galvanometer queue that matches：1) pumped in gas port at same group, bleeding point (4) with supply gas
The vertical projection of mouth (5) in workbench (13) upper surface is located at the galvanometer queue that matches in workbench (13) upper surface
The left and right sides in effective irradiation region；2) it after clarifying smoke host is opened, pumps for every group and is formed by airflow field between gas port and exists
The vertical projection of workbench (13) upper surface can will match galvanometer queue workbench (13) upper surface effective irradiation
Region overlay；
The protective atmosphere regulatory component is used to provide inertia environmental protection for laser irradiation region domain；
The control system generates galvanometer array sweeping track for handling part C AD models to be formed, and drives in equipment it
Remaining part part is run.
2. more galvanometer big width laser selective melting equipments according to claim 1, which is characterized in that the galvanometer combination
By the first galvanometer guide rail (6), the second galvanometer guide rail (7) and in left-right direction evenly arranged M row galvanometer queue form；First shakes
Mirror guide rail (6) and the second galvanometer guide rail (7) are installed on the inner wall of work nacelle (16) front and rear sides, can drive all galvanometer queues
The synchronizing moving in left-right direction above the workbench (13)；The queue of each column galvanometer all includes to be mounted on holder (2) and along preceding
The equally distributed N set galvanometer systems (1) of rear direction.
3. more galvanometer big width laser selective melting equipments according to claim 1, which is characterized in that the work nacelle
(16) top is equipped with transmission lens (24)；The galvanometer combination is by the first galvanometer guide rail (6), the second galvanometer guide rail (7) and edge
The evenly arranged M row galvanometer queue composition of left and right directions；First galvanometer guide rail (6) and the second galvanometer guide rail (7) are installed on work
The top of nacelle (17) light-transmission top eyeglass (24), can drive all galvanometer queues above the workbench (13) in left-right direction
Synchronizing moving；The queue of each column galvanometer all includes to be mounted on holder (2) and equally distributed N covers galvanometer system along the longitudinal direction
(1)。
4. more galvanometer big width laser selective melting equipments according to claim 1 or 2 or 3, which is characterized in that the paving
Component powder includes the first powder storage chamber (8), the second powder storage chamber (9), Powder spreader (12) and powdering transmission mechanism；First powder storage chamber (8)
It is placed at the top of work nacelle with the second powder storage chamber (9), vertical projection respectively falls in the left and right sides of workbench upper surface；
Powder spreader (12) can in left-right direction move back and forth under the drive of powdering transmission mechanism in workbench (13) upper surface；When
When Powder spreader (12) is moved to below the first powder storage chamber (8) and the second powder storage chamber (9), the first powder storage chamber (8) and the second powder storage chamber
(9) metal powder of controllable quantity can be provided for Powder spreader (12)；Powder spreader (12) receives the first powder storage chamber (8) and the second storage powder
After room (9) provided metal powder, the controllable metal powder layer of thickness can be laid in formation cylinder (14) upper surface.
5. more galvanometer big width laser selective melting equipments according to claim 1 or 2, which is characterized in that the movement
Formula subregion clarifying smoke component is flexible by pumping gas port, clarifying smoke host (18), gas circulation channel (19) and the first dedusting
Bar (3) forms；Wherein, it pumps gas port and shares M groups, be made of bleeding point (4) and air taking port (5), and be respectively positioned on work nacelle
(16) internal；Every group of pump that gas port is matched by gas circulation channel (19) with outside the work nacelle (16) one
Clarifying smoke host (18) is connected；The internal structure of every clarifying smoke host (18) is selected with existing more galvanometer big width lasers
The internal structure of area's melting unit corresponding component is identical；Same group is pumped in gas port, the pumping direction of bleeding point (4) and air taking port
(5) air supply direction is identical, and parallel with equipment left and right directions；Every group of bleeding point (4) with air taking port (5) and a row galvanometer team
Row match；Gas port is pumped for every group to be installed under the holder (2) for the galvanometer queue that matches by the first dedusting telescopic rod (3)
Side；Under the drive of the first galvanometer guide rail (6), the second galvanometer guide rail (7) and the first dedusting telescopic rod (3), every group of bleeding point (4) with
Air taking port (5) can be moved back and forth with vertical direction in left-right direction above workbench (13).
6. more galvanometer big width laser selective melting equipments according to claim 1 or 3, which is characterized in that the movement
Formula subregion clarifying smoke component is by pumping gas port, clarifying smoke host (18), gas circulation channel (19), the first dedusting guide rail
(25), the second dedusting guide rail (26) and the second dedusting telescopic rod (27) composition；Wherein, gas port is pumped to share M groups and be respectively positioned on work
It is internal to make nacelle (16), it includes a bleeding point (4) and air taking port (5) to pump gas port for every group；Gas port (5) is pumped for every group to lead to
The clarifying smoke host (18) that gas circulation channel (19) matches with outside work nacelle (16) is crossed to be connected；It is same
Group is pumped in gas port, and the pumping direction of bleeding point (4) is identical as the air supply direction of phase air taking port (5), and with equipment left and right directions
It is parallel；Every group of rear and front end for pumping gas port is respectively connected with the first dedusting guide rail (25), the second dedusting guide rail (26), and first
Dedusting guide rail (25), the second dedusting guide rail (26) then with second dedusting telescopic rod (27) phase for being installed at the top of work nacelle (16)
Even；Under the drive of the first dedusting guide rail (25), the second dedusting guide rail (26) and the second dedusting telescopic rod (27), every group of bleeding point
(4) it can be moved back and forth in left-right direction with vertical direction above workbench (13) with air taking port (5)；Every group of bleeding point
(4) match with a row galvanometer queue with air taking port (5).
7. more galvanometer big width laser selective melting equipments according to claim 4, which is characterized in that every group is pumped gas port
Between be formed by vertical projection left and right directions length L3 and match galvanometer team of the airflow field in workbench (13) upper surface
The difference for being listed in the effective irradiation region left and right directions length L1 of workbench (13) upper surface is 1~20cm；Every group is pumped gas
It is formed by vertical projection front-rear direction length L4 and match galvanometer of the airflow field in workbench (13) upper surface between mouthful
Queue is 1~20cm in the difference of the effective irradiation region front-rear direction length L2 of workbench (13) upper surface.
8. more galvanometer big width laser selective melting equipments according to claim 5, which is characterized in that every group is pumped gas port
Between be formed by vertical projection left and right directions length L3 and match galvanometer team of the airflow field in workbench (13) upper surface
The difference for being listed in the effective irradiation region left and right directions length L1 of workbench (13) upper surface is 1~20cm；Every group is pumped gas
It is formed by vertical projection front-rear direction length L4 and match galvanometer of the airflow field in workbench (13) upper surface between mouthful
Queue is 1~20cm in the difference of the effective irradiation region front-rear direction length L2 of workbench (13) upper surface.
9. more galvanometer big width laser selective melting equipments according to claim 6, which is characterized in that every group is pumped gas port
Between be formed by vertical projection left and right directions length L3 and match galvanometer team of the airflow field in workbench (13) upper surface
The difference for being listed in the effective irradiation region left and right directions length L1 of workbench (13) upper surface is 1~20cm；Every group is pumped gas
It is formed by vertical projection front-rear direction length L4 and match galvanometer of the airflow field in workbench (13) upper surface between mouthful
Queue is 1~20cm in the difference of the effective irradiation region front-rear direction length L2 of workbench (13) upper surface.
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