CN110480012A - A kind of seal hatch of selective laser fusing forming - Google Patents
A kind of seal hatch of selective laser fusing forming Download PDFInfo
- Publication number
- CN110480012A CN110480012A CN201910920908.7A CN201910920908A CN110480012A CN 110480012 A CN110480012 A CN 110480012A CN 201910920908 A CN201910920908 A CN 201910920908A CN 110480012 A CN110480012 A CN 110480012A
- Authority
- CN
- China
- Prior art keywords
- top plate
- sealing
- seal
- forming
- cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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]
-
- 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
- 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
- B22F12/30—Platforms or substrates
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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 present invention relates to a kind of seal hatch of selective laser fusing forming.The seal hatch includes support platform, shape cabinet, ram, connecting plate and top plate, it is characterized in that, top plate, successively the top of ram is arranged in lamination from bottom to up for connecting plate and support platform, ram drives top plate, connecting plate and support platform move up and down in forming box body along its inner wall, combined seal structure is provided on top plate, combined seal structure includes automatic adjustment sealing structure and filled type sealing structure, wherein, automatic adjustment sealing structure is located at top plate side periphery, for sealing top plate and shaping the gap between cabinet wall, in top plate top surface, filled type sealing structure is set, for sealing the gap of top plate and connecting plate.The seal hatch solves the problems, such as prior art right angle poor sealing effect, greatly improves whole sealing performance and airtight quality, it is ensured that the leakage of forming cabin atmosphere parameter stablized and avoid powder.
Description
Technical field
The present invention relates to increasing material manufacturing equipment technical fields, more particularly to a kind of sealed compartment of selective laser fusing forming
Room.
Background technique
Selective laser smelting technology is to pass through the skill of material built up to realize manufacture based on discrete/accumulation principle
Art, which is designed by various structures and the auxiliary of technological procedure is realized.Wherein, support platform non-circular profile face is effective
Sealing, is implemented as the sealing of shape cabin and equipment operates normally indispensable important component.
Currently, selective laser fusing former support platform peripheral sealing effect is undesirable, especially right-angle surface intersects
The sealing at place, effect is worse, and powder leakage is serious, and the service life of sealing element is short, and turnover rate is high, drops to a certain extent
The low working efficiency of equipment, affects leakproofness, the reliability and stability of equipment working state.
In order to improve sealing effect, extends the service life of sealing element, reduce replacement number, prevent powder from leaking and guaranteeing
The stability for shaping cabin atmosphere parameter needs to innovate the structure design in forming cabin, fundamentally solves sealing and exists
The problem of.
Therefore, a kind of seal hatch of selective laser fusing forming is inventor provided.
Summary of the invention
The embodiment of the invention provides a kind of seal hatch of selective laser fusing forming, in moveable top plate and forming
It is provided with combined seal structure between cabinet, in addition, 4 rubber tapping for shaping cabinets cavity face are designed as cambered surface transition, solves
The problem of forming cabin right angle poor sealing effect of the prior art.
The embodiment of the present invention proposes a kind of seal hatch of selective laser fusing forming, which retains support
Platform, forming cabinet, ram, connecting plate and top plate, which is characterized in that the top plate, connecting plate and support platform are from bottom to up
Successively the top of the ram is arranged in lamination, and the ram drives top plate, connecting plate and support platform in the forming cabinet
It is interior to move up and down along its inner wall, combined seal structure is provided on the top plate, the combined seal structure includes certainly
Dynamic adjusting type sealing structure and filled type sealing structure, wherein the automatic adjustment sealing structure is located at the top plate side
The filling is arranged in the top plate top surface for sealing the gap between the top plate and the forming cabinet wall in periphery
Formula sealing structure, for sealing the gap of top plate and connecting plate.
Further, multiple automatic adjustment sealing structures are evenly distributed in the top plate and the forming box body
At sealing between wall, it is provided with seal groove in the corresponding sealing position of the top plate, is tied for sealing the automatic adjustment
Structure filled type is mounted in it.
Further, the automatic adjustment sealing structure includes band, elastomer and pressing plate, and the elastomer is lateral
Setting, one end are fixed on the seal groove bottom of the top plate, and the other end is fixed on the pressing plate, and the band is to be set in top
Endless belt at the sealing of plate periphery, the power that the elastomer generates passes through pressing plate function on band, so that band periphery
It is tightly sturdy in forming cabinet wall.
Further, the elastomer is helical spring.
Further, one group or two groups of filled type sealing knots also are provided between the top plate and the forming cabinet wall
Structure.
Further, the filled type sealing structure includes the rectangular ring groove opened up in top plate periphery and ring packing
Circle, the ring type seal are filled in the annular groove, for further sealing the top plate and the forming cabinet
Gap.
Further, the ring type seal is prismatic rectangular ring sealing ring.
Further, the cross section of the forming cabinet is rectangular configuration, and four angles of inner cavity surface are fairing transition cambered surface.
Further, the forming cabinet is knockdown removable assembling structure, wherein the knot of front part and rear section
Structure is symmetrical, and medial surface is plane, the symmetrical configuration of left part and right part, and, left part and right part it is interior
Side includes the contoured surface of plane and surface composition.
Further, the left part and right part of the forming cabinet separately include two fairing transition cambered surfaces
Fillet.
To sum up, beneficial effects of the present invention are as follows:
1, using combined seal structure, whole sealing performance and airtight quality are greatly promoted, it is ensured that forming cabin gas
The leakage of atmosphere environmental parameter stablized and avoid powder, wherein the structure of automatic adjustment sealing structure is simplified, and dismounting is fast
Victory can make dynamic and adjust, sealing effect retentivity is good according to the variation of sealing mating surface gap size.
2, forming cabinet uses the removable structure type of combined type, and four angles of inner cavity surface are fairing transition cambered surface, can add
Work is good, and it is convenient to dismount, and cavity shape dimensional accuracy is easy to realize by repair, greatly reduces manufacture difficulty, and precision is protected
Holding property is good.
3, seal hatch of the invention, which can also be expanded, is applied in other type equipments.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of schematic perspective view of the seal hatch of selective laser fusing forming of the embodiment of the present invention.
Fig. 2 is that the embodiment of the present invention conceals the schematic perspective view after part forming cabinet.
Fig. 3 is the planar structure schematic diagram of the embodiment of the present invention.
Fig. 4 is the overlooking structure diagram of the embodiment of the present invention.
Fig. 5 is partial enlargement diagram at B in Fig. 3.
In figure:
1- support platform；2- shapes cabinet；3- ram；4- connecting plate；5- top plate；6- band；7- elastomer；8- pressure
Plate；9- ring type seal；The sealing of the top surface 10-.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment it is detailed
Thin description and attached drawing cannot be used to limit the scope of the invention for illustratively illustrating the principle of the present invention, i.e., of the invention
It is not limited to described embodiment, covers part, component and connection type under the premise of without departing from the spirit of the present invention
Any modification, replacement and improvement.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to accompanying drawings and in conjunction with the embodiments.
As depicted in figs. 1 and 2, a kind of seal hatch of selective laser of the invention fusing forming, the device include at least
Support platform 1, forming cabinet 2, ram 3, connecting plate 4 and top plate 5, top plate 5, connecting plate 4 and support platform 1 are from bottom to up successively
The top of ram 3 is arranged in lamination, and ram 3 drives top plate 5, connecting plate 4 and support platform 1 in forming cabinet 2 along its inner wall
It moves up and down, forming cabinet is divided into upper chamber part and lower chambers part.Combined labyrinth and carbon gland knot is provided on the top plate 5
Structure, the combined seal structure include automatic adjustment sealing structure and filled type sealing structure, wherein the adjust automatically
Type sealing structure is located at the 5 side periphery of top plate, between sealing between the top plate 5 and 2 inner wall of forming cabinet
Filled type sealing structure is arranged in 5 top surface of top plate in gap.
It should be noted that only showing components related to the present invention in figure, other are with the present invention without directly
The components of relationship are not shown.
As a kind of preferred embodiment, in seal hatch of the invention, the forming cabinet 2 is knockdown removable knot
Structure, cross section are rectangular configuration, and four angles of inner cavity surface are fairing transition cambered surface.Shape the front part and rear side of cabinet 2
Partial symmetrical configuration, medial surface are plane, the symmetrical configuration of left part and right part, also, left part and the right side
The medial surface of side section is the contoured surface of plane and surface composition, and the left part and right part for shaping cabinet 2 are distinguished
Fillet comprising two fairing transition cambered surfaces.
In conjunction with shown in Fig. 3 and Fig. 5, multiple automatic adjustment sealing structures be evenly distributed on the top plate 5 with it is described
It shapes at the sealing between 2 inner wall of cabinet, is radially provided with seal groove in the corresponding sealing position of the top plate 5, be used for institute
Automatic adjustment sealing structure filled type is stated to be mounted in it.In practice, one can be installed respectively in four faces of forming cabinet 2
Group or multiple groups automatic adjustment sealing structure, so that sealing is uniformly reliable.
Further, shown in Figure 5, the automatic adjustment sealing structure includes band 6, elastomer 7 and pressing plate
8, elastomer 7 uses helical spring, and the elastomer 7 laterally setting, one end is fixed on the seal groove bottom of the top plate 5, the other end
It is fixed on the pressing plate 8, the band 6 is the endless belt being set at 5 periphery sealing of top plate, and the elastomer 7 generates
Power acted on band 6 by pressing plate 8 so that 6 periphery of band is tightly sturdy in forming 2 inner wall of cabinet.
As another preferred embodiment, one group or two groups also is provided between the top plate 5 and 2 inner wall of forming cabinet
Filled type sealing structure.
The filled type sealing structure includes the rectangular ring groove and ring type seal 9 opened up in 5 periphery of top plate, annular
Sealing ring 9 is filled in annular groove, for further sealing top plate 5 and shaping the gap of cabinet 2.Preferably, ring packing
Circle 9 is prismatic rectangular ring sealing ring.
Top plate seal structure is provided on top plate 5, top plate seal structure includes that 5 top periphery of top plate is equally distributed certainly
Dynamic adjusting type structure, the top surface sealing 10 of top plate 5 and the filling of 5 lower periphery of top plate seal 9.
The present invention is for the sealing problem for shaping cabin and powder, according to ram 3, top plate 5, connecting plate 4, support platform 1
And the arrangement of forming cabinet 2, on the one hand, the machinability and required precision for fully considering sealing effect, part, by forming box
2 inner cavity peripheral shape of body is designed to that the angle of plane and surface composition contoured surface, especially four is fairing transition cambered surface, solves existing
There is the problem of technology right angle poor sealing effect, and shapes cabinet and be designed as knockdown removable assembling structure, as shown in figure 4, by
Left part I, right part II, rear section III and IV 4 part of front part are constituted, and the structure was not only easy to manufacture, but also
Convenient for the form accuracy of assembling adjustment and the inside global sections for guaranteeing forming cabinet；On the other hand, support platform 1, connecting plate 4
It is integrated with the assembly superposition of top plate 5, is connected and fixed with ram 3, the course of work of reciprocating motion is realized in forming cabinet 2.
By the calculating of elevating movement driving force and frictional force, the factors such as bulk, sealing means and resistance are taken into account
It influences, determines that arrangement combinations formula sealing structure, this sealing structure are particularly suitable for the combined type in non-circular profile face on top plate 5
Sealing structure, the combined seal structure on top plate includes two parts: first is that the equally distributed automatic adjustment of top periphery is close
Seal structure is made of band 6, elastomer 7 and pressing plate 8, and the power that elastomer 7 generates is acted on band 6 by pressing plate 8,
So that 6 periphery of band is tightly sturdy in forming 2 internal chamber wall of cabinet, play the role of eliminating gap, in addition, by manufacturing, assembling
Top plate 5 caused by error and forming 2 fit clearance size variation of cabinet.Elastomer 7 in automatic adjustment sealing structure can lead to
Cross automatic telescopic, realize sealing dynamic adjustment, guarantee elevating movement it is steady while, also can avoid movement when resistance it is excessive or
Operation caused by unbalance loading is unsmooth, or even " stuck " phenomenon occurs, extends the service life of band 6, reduces maintenance cost.
Second is that the ring type seal 9 of top surface sealing 10 and the periphery filling of top plate 5, can further enhance the effect of sealing, be to aforementioned
Effective supplement of automatic adjustment sealing structure can further improve static and dynamic sealing between top plate 5 and forming cabinet 2
Effect, to greatly promote whole sealing performance and airtight quality, it is ensured that forming cabin atmosphere parameter stabilization and
Avoid the leakage of powder.
It should be clear that all the embodiments in this specification are described in a progressive manner, each embodiment it
Between the same or similar part may refer to each other, the highlights of each of the examples are it is different from other embodiments it
Place.The invention is not limited to particular step described above and shown in figure and structures.Also, for brevity,
Here the detailed description to known method technology is omitted.
The above description is only an example of the present application, is not restricted to the application.The scope of the present invention is not being departed from
In the case where to those skilled in the art, various changes and changes are possible in this application.It is all in spirit herein and
Any modification, equivalent replacement, improvement and so within principle, should be included within the scope of claims hereof.
Claims (10)
1. a kind of seal hatch of selective laser fusing forming, including support platform (1), forming cabinet (2), ram (3), connection
Plate (4) and top plate (5), which is characterized in that the top plate (5), connecting plate (4) and support platform (1) successively lamination from bottom to up
Top in the ram (3) is set, the ram (3) drive top plate (5), connecting plate (4) and support platform (1) it is described at
It moves up and down in shape cabinet (2) along its inner wall, combined seal structure is provided on the top plate (5), the combined type is close
Seal structure includes automatic adjustment sealing structure and filled type sealing structure, wherein the automatic adjustment sealing structure is located at
Top plate (5) the side periphery, for sealing the gap between the top plate (5) and described forming cabinet (2) inner wall, described
The filled type sealing structure is arranged in top plate (5) top surface, for sealing the gap of top plate (5) Yu connecting plate (4).
2. the seal hatch of fusing forming in selective laser according to claim 1, which is characterized in that multiple automatic tune
Integer sealing structure is evenly distributed at the sealing between the top plate (5) and described forming cabinet (2) inner wall, in the top plate
(5) corresponding sealing position is provided with seal groove, for the automatic adjustment sealing structure filled type to be mounted in it.
3. the seal hatch of fusing forming in selective laser according to claim 2, which is characterized in that the automatic adjustment
Sealing structure includes band (6), elastomer (7) and pressing plate (8), and the elastomer (7) is laterally arranged, and one end is fixed on described
The seal groove bottom of top plate (5), the other end are fixed on the pressing plate (8), and the band (6) is to be set in top plate (5) periphery
Endless belt at sealing, the power that the elastomer (7) generates is acted on band (6) by pressing plate (8), so that band
(6) periphery is tightly sturdy in forming cabinet (2) inner wall.
4. the seal hatch of fusing forming in selective laser according to claim 3, which is characterized in that the elastomer (7)
For helical spring.
5. the seal hatch of fusing forming in selective laser according to claim 1, which is characterized in that in the top plate (5)
One group or two groups of filled type sealing structures also are provided between forming cabinet (2) inner wall.
6. the seal hatch of fusing forming in selective laser according to claim 5, which is characterized in that the filled type sealing
Structure is included in the rectangular ring groove and ring type seal (9) that top plate (5) periphery opens up, ring type seal (9) filling
In the annular groove, for further sealing the gap of the top plate (5) and forming cabinet (2).
7. the seal hatch of fusing forming in selective laser according to claim 6, which is characterized in that the ring type seal
It (9) is prismatic rectangular ring sealing ring.
8. the seal hatch of selective laser according to claim 1-7 fusing forming, which is characterized in that it is described at
The cross section of shape cabinet (2) is rectangular configuration, and four angles of inner cavity surface are fairing transition cambered surface.
9. the seal hatch of fusing forming in selective laser according to claim 8, which is characterized in that the forming cabinet
It (2) is knockdown removable assembling structure, wherein the symmetrical configuration of front part and rear section, medial surface are plane, left side
The symmetrical configuration of part and right part, and, the medial surface of left part and right part includes the wheel of plane and surface composition
Profile surface.
10. the seal hatch of fusing forming in selective laser according to claim 9, which is characterized in that the forming cabinet
(2) left part and right part separately includes the fillet of two fairing transition cambered surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920908.7A CN110480012A (en) | 2019-09-27 | 2019-09-27 | A kind of seal hatch of selective laser fusing forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920908.7A CN110480012A (en) | 2019-09-27 | 2019-09-27 | A kind of seal hatch of selective laser fusing forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110480012A true CN110480012A (en) | 2019-11-22 |
Family
ID=68544423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910920908.7A Pending CN110480012A (en) | 2019-09-27 | 2019-09-27 | A kind of seal hatch of selective laser fusing forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110480012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001765A (en) * | 2019-12-24 | 2020-04-14 | 肇庆学院 | Leakproof sand box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020081A (en) * | 2015-07-13 | 2017-01-26 | 株式会社ソディック | Lamination molding device |
| CN108488379A (en) * | 2018-05-03 | 2018-09-04 | 中国兵器装备研究院 | A kind of 3D printing equipment cylinder body sealing device |
| CN208408547U (en) * | 2018-06-15 | 2019-01-22 | 宁波中物力拓超微材料有限公司 | High leakproofness moulding cylinder for selective laser melting unit |
| CN110090955A (en) * | 2019-05-10 | 2019-08-06 | 中国航空制造技术研究院 | The encapsulating method of multistation selective laser melting unit |
-
2019
- 2019-09-27 CN CN201910920908.7A patent/CN110480012A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017020081A (en) * | 2015-07-13 | 2017-01-26 | 株式会社ソディック | Lamination molding device |
| CN108488379A (en) * | 2018-05-03 | 2018-09-04 | 中国兵器装备研究院 | A kind of 3D printing equipment cylinder body sealing device |
| CN208408547U (en) * | 2018-06-15 | 2019-01-22 | 宁波中物力拓超微材料有限公司 | High leakproofness moulding cylinder for selective laser melting unit |
| CN110090955A (en) * | 2019-05-10 | 2019-08-06 | 中国航空制造技术研究院 | The encapsulating method of multistation selective laser melting unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001765A (en) * | 2019-12-24 | 2020-04-14 | 肇庆学院 | Leakproof sand box |
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Application publication date: 20191122 |