Forming box for the forming printing of metal selective laser fusion
Technical field
It is the present invention relates to a kind of metal 3D printer, more particularly to a kind of for the forming printing of metal selective laser fusion
Forming box.
Background technology
Metal selective laser fusion shapes (SLM) printer, and to prevent Forming Workpiece from aoxidizing, forming box is mostly with lazy
Property gas shield, but protect gas can make have bubble generation in drip molding, influence drip molding quality.
Invention content
In order to make up the above deficiency, the present invention provides a kind of formings for the forming printing of metal selective laser fusion
Case, the forming box intensity for being used for the forming printing of metal selective laser fusion is high, and inside can vacuumize, and be conducive to improve work
Part intensity.Eliminate drip molding inner air vent.
The present invention in order to solve its technical problem used by technical solution be:One kind being used for metal selective laser fusion
The forming box of printing is shaped, including forms the forming babinet and working cylinder cylinder body of formingspace, the forming babinet and work
The sealing connection of cylinder cylinder body forms integral structure, shapes and is formed with the vacuum orifice being connected to with vaccum-pumping equipment on babinet, shapes
It is also formed on babinet and seals the powder inlet being connected to the meal outlet of powder feeding mechanism.
As being further improved for invention, the forming babinet and working cylinder cylinder body all use cylindrical structure.
As being further improved for invention, the forming babinet is that quadrature forms integral structure with working cylinder cylinder body.
As being further improved for invention, the forming babinet is connect with working cylinder cylinder body using welded seal.
As being further improved for invention, the powder inlet is located at axial one end of forming babinet cylindrical structure.
As being further improved for invention, axial one end sealing of the forming babinet cylindrical structure is equipped with rear cover, after
Lid forms the powder feeding case one side wall of powder feeding mechanism, and powder feeding case lower end forms discharge port, and discharge port and a diamond shape feeding cylinder body seal
Connection, the diamond shape feeding cylinder body upper end are connected to forming box house sealing.
As being further improved for invention, datum plane structure is also formed in the forming box body.
As being further improved for invention, powder-wiping plate guide rail is also formed in the forming box body.
As being further improved for invention, the vacuum orifice is located on the circumferential side wall of forming babinet cylindrical structure.
As being further improved for invention, it is additionally provided on the working cylinder cylinder body madial wall for being oriented to cylindrical piston
Guidance tape.
The method have the benefit that:The present invention is into a single integrated structure by working chamber and working cylinder tank design, realizes
Vacuum laser shapes in working chamber, and the principle of very big pressure can be born according to circular configuration, designs and produces cylindrical forming box
Body is welded by integrally formed pipe and cylindrical work cylinder orthogonal systems, forms one, in forming babinet cylinder setting powder-wiping plate and
Benchmark job forming face and guide rail, setting powder inlet are connected to the underlying powder case sealing of integral type, realize powder feeding, totally-enclosed work
Cylinder and piston guide, using the advanced vacuum system of two-stage type, the realization for vacuum laser forming provides high-strength shaped babinet, thorough
Bottom avoids the presence of bubble in workpiece, effectively increases the intensity and Mass accuracy of formed product.
Description of the drawings
Fig. 1 is the first stereogram of structure of the invention principle;
Fig. 2 is the second stereogram of structure of the invention principle.
Specific implementation mode
Embodiment:A kind of forming box for the forming printing of metal selective laser fusion, including form formingspace
Forming babinet 1 and working cylinder cylinder body 2, the sealing of the forming babinet 1 and working cylinder cylinder body 2 be connected to form integral structure, forming
It is formed with the vacuum orifice 3 being connected to with vaccum-pumping equipment on babinet 1, shapes to be also formed on babinet 1 and go out with powder feeding mechanism
The powder inlet 4 of powder mouth sealing connection.
The forming babinet 1 and working cylinder cylinder body 2 all use cylindrical structure, circular configuration that can bear very big pressure,
It avoids shaping babinet under vacuum conditions to be bullied pressure effect deformation.
The forming babinet 1 is that quadrature forms integral structure with working cylinder cylinder body 2.
The forming babinet 1 is connect with working cylinder cylinder body 2 using welded seal, and forming babinet 1 passes through with working cylinder cylinder body 2
Orthogonal systems are welded into shape, and overall construction intensity is big, convenient for being manufactured
The powder inlet 4 is located at axial one end of forming babinet cylindrical structure.
Axial one end sealing of the forming babinet cylindrical structure is equipped with rear cover, and rear cover forms the powder feeding case of powder feeding mechanism
One side wall, powder feeding case lower end form discharge port, and discharge port is connected to a diamond shape feeding cylinder body 7 sealing, on the diamond shape feeding cylinder body 7
End with forming box house sealing be connected to, which so that integral strength is big, is not easy compressive deformation, simple in structure, powder feeding case and
It shapes babinet and shares rear cover, save space and manufacture material, save manufacturing cost.
Also be formed with datum plane structure 5 in the forming babinet 1, integrally formed datum plane structure convenient for pair
Workpiece precise forming.
It is also formed with powder-wiping plate guide rail 6 in the forming babinet 1, it is high to ensure that powder-wiping plate scrapes powder precision.
The vacuum orifice 3 is located on the circumferential side wall of forming babinet cylindrical structure.
It is additionally provided with the guidance tape for being oriented to cylindrical piston on 2 madial wall of working cylinder cylinder body, ensures powder feeding essence
Degree avoids occurring phenomena such as leakage powder, blocking occurs.