CN110340366A - Sand mold supports the double gantry increasing material manufacturing equipments of combined type and Method of printing - Google Patents
Sand mold supports the double gantry increasing material manufacturing equipments of combined type and Method of printing Download PDFInfo
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- CN110340366A CN110340366A CN201910618960.7A CN201910618960A CN110340366A CN 110340366 A CN110340366 A CN 110340366A CN 201910618960 A CN201910618960 A CN 201910618960A CN 110340366 A CN110340366 A CN 110340366A
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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
- B22F12/22—Driving means
- B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
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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
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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
- B22F10/20—Direct sintering or melting
- B22F10/22—Direct deposition of molten metal
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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
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- 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
- B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
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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
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/62—Treatment of workpieces or articles after build-up by chemical means
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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
- 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
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- 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
- B33Y10/00—Processes of additive manufacturing
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- 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
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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
- B22F12/30—Platforms or substrates
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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
- B22F12/50—Means for feeding of material, e.g. heads
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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
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention provides a kind of double gantry increasing material manufacturing equipments of sand mold support combined type and Method of printing, including metal 3D printing system, sand mold 3D printing system, double Longmen machine tools, workbench and control system, metal 3D printing system is powder feeding formula metal 3D printing system or electric arc fuse 3D printing system；Metal 3D printing system has for the work head in the enterprising row metal 3D printing of substrate；There is sand mold 3D printing system a printing head to carry out sand mold 3D printing, and printing head and work head are fixed on the first connecting plate；Control system control printing head and work head successively print metal parts and sand mold support operation alternately on substrate, wherein carrying out compacting operation by the platen on the second connecting plate after every layer of sand mold support printing.The present invention can solve the problems, such as that conventional arc increasing material manufacturing equipment can not print support, cannot manufacture the complicated metal parts with big inclination angle, local hollow out.
Description
Technical field
The present invention relates to metal 3D printing technique field fields, in particular to a kind of double gantry of sand mold support combined type
Increasing material manufacturing equipment and Method of printing.
Background technique
Band large-scale metal material complex structural member increasing material manufacturing (3D printing) technology is derived from rapid prototyping (Rapid
Prototyping, RP) technology, obtain extensive attention and development at home nearly ten years.The core process of the technology be
Under the auxiliary of numerical control device, metal material is passed through into high energy beam current (including laser, plasma in the form of globular powder or silk material
Beam or electron beam etc.) carry out layer-by-layer fusion sediment formation large-sized structural parts.With the machining mode of traditional " removal " formula
Difference, the technology carry out layer by layer deposition with the theory of " growth " formula, greatly improve the utilization rate of raw material；Simultaneously because keeping away
The design and process for having exempted from a large amount of molds, highly shortened the manufacturing cycle of component.It is shaped as metal material tradition
The useful supplement of method, 3D printing technique solve the problems, such as that many thermal deformation technologies of preparing that pass through can not capture, continue to develop
And maturation, the fields such as new product designs, medical instrument, aerospace have been widely applied to, have been traditional manufacturing technology and green wood
The perfect combination for expecting manufacturing technology, can be referred to as an important technical revolution of manufacture field.
Electric arc fuse 3D printing technique (also known as electric arc increases material manufacturing technology, abbreviation WAAM), by the way of layer-by-layer built-up welding
Metal solid component is manufactured, the welding techniques such as TIG, MIG/MAG, PLASMA is based primarily upon and develops, formation of parts is by electric arc
Fuse is constituted, and chemical component is uniform, consistency is high, and open forming environment is to the theory unlimited system of size of formed part, forming speed
Rate is up to 4-8kg/h.With the development of China's Aerospace Technology, solid propellant rocket becomes feasible as carrier rocket boost motor
Technical solution.The critical component of solid boost motor is the binding connection ring Large Size Special Shaped structure connecting with core grade, using biography
The turning-milling complex processing of system, waste of material is huge, and the process-cycle is long, at high cost, becomes the key for restricting the development of solid boost motor
Technical bottleneck.And height realizability of the electric arc increasing material manufacturing in terms of large-size special-shaped membe provides to solve above-mentioned bottleneck
Important breakthrough mouth.
However electric arc fuse 3D printing technique is limited by itself process flow and technical characterstic, it is not pervasive in all
Metal structure part, it may have its scope of application and limitation.Electric arc fuse 3D printing technique is line molding, is suitble to solid member
Printing shaping, but be not suitable for doing interrupted printing, so being difficult to print metal support, can not print with big inclination angle, part
The complex parts of the features such as hollow out；In addition metacoxal plate is completed in printing and part separating difficulty is big, time-consuming and laborious.
Summary of the invention
It is an object of that present invention to provide a kind of double gantry increasing material manufacturing equipments of sand mold support combined type and Method of printings, it is intended to
It solves conventional arc increasing material manufacturing equipment and can not print support, cannot manufacture and have many characteristics, such as that big inclination angle, part hollow out are answered
Miscellaneous metal parts, while printing problem time-consuming and laborious when part is separated with substrate.
To achieve the above object, the technical solution that the present invention uses is as follows:
Sand mold supports the double gantry increasing material manufacturing equipments of combined type, comprising: including metal 3D printing system, sand mold 3D printing system
System, double Longmen machine tools, workbench and control system, in which:
Double Longmen machine tools have a pair of of pedestal, install two groups of columns on opposite pedestal respectively, and respectively first is vertical
Column group and the second column group, the first column group and the second column group are each arranged to can be relative to pedestal sliding motion, and limits
Glide direction is X-direction；
It is provided with first crossbeam in the first column group, on two columns that ground is installed to the first column group, the
One crossbeam is arranged along the movement of vertical direction defined in column, and limits the direction of motion as Z-direction；The first crossbeam
On be provided with the first connecting plate, be configured to move along direction defined in first crossbeam, and limit the direction of motion as Y1
Direction；
It is provided with second cross beam in the second column group, on two columns that ground is installed to the second column group, the
Two crossbeams are arranged along the movement of vertical direction defined in column, and limit the direction of motion as Z-direction；The second cross beam
On be provided with the second connecting plate, be configured to move along direction defined in second cross beam, and limit the direction of motion as Y2
Direction；
The workbench is arranged between two pedestals of double Longmen machine tools, constitutes the working region of increasing material manufacturing, is used in combination
In the substrate of fixed increasing material manufacturing printing；
The metal 3D printing system is with one for the work head in the enterprising row metal 3D printing of substrate；The sand mold 3D
Print system has a printing head, sprays sand mold powder by printing head and is beaten with carrying out sand mold 3D on the substrate
Print, the printing head and work head are fixed on first connecting plate side by side and at interval；
Be fixed with a platen on second connecting plate, the platen be configured to the plane pushed towards substrate,
To be compacted the molding sand powder of printing；
The control system is configured to and the metal 3D printing system, sand mold 3D printing system and double Longmen machine tools point
It is not electrically connected, for controlling its operation, comprising: pass through two columns of control, two crossbeams and the first connecting plate and second
The movement of connecting plate so that the printing head of the sand mold 3D printing system on the first connecting plate printed on substrate sand mold support with
The work head of metal 3D printing system successively printed on substrate metal parts and metal support print job alternately,
In compacting operation is carried out by the platen on second connecting plate after the support printing of every layer of sand mold.
Further, the metal 3D printing system is electric arc fuse 3D printing system, including welding gun, wire-feed motor, wire tray
And welding machine electric power, the welding gun is as the work head；Metal welding wire is placed in the wire tray, wire-feed motor is arranged for
Metal welding wire is transmitted to the front end of welding gun, welding machine electric power, which is provided in after it is activated, converts electrical energy into heat in welding gun front end
Can be to melt metal welding wire to molten condition, and metal 3D printing is carried out on the substrate.
Further, the welding gun of the electric arc fuse 3D printing system and the operating point of printing head are contour.
Further, the metal 3D printing system is powder feeding formula metal 3D printing system, including powder feeding formula laser machines
Head, optical fiber, laser and powder feeder；The powder feeding formula laser Machining head is as the work head；Powder feeder is arranged for
Metal powder is stored, metal powder is delivered to the front end of powder feeding formula laser Machining head by the powder feeder；Laser is used for
The laser beam for emitting the high-energy density of setting is transmitted to powder feeding formula laser Machining head by the optical fiber, and passes through powder feeding formula
Melt metal powder after optical module collimation, focusing inside laser Machining head, carries out the metal 3D printing of powder feeding formula.
Further, the operating point of the powder feeding formula laser Machining head and printing head is contour.
Further, the control system controls the metal 3D printing system and sand mold 3D printing system carries out 3D printing
In the process, the first layer prints to the 3D printing of the molding sand powder carried out by sand mold 3D printing system.
Further, the sand mold 3D printing system includes printing head, fortune sand pipeline, extrusion mechanism and feed bin, material
The sand mold powder that fine sand powder and bonding agent mix is stored in storehouse, extrusion mechanism is configured to will to pass through fortune sand pipeline
Sand mold powder is delivered to printing head, and carries out sand mold 3D printing on the substrate.
Further, the movement of the X-direction, the direction Y1, the direction Y2 and Z-direction is provided with movement guide mechanism.
A kind of improvement according to the present invention, it is also proposed that increasing material manufacturing of the double gantry increasing material manufacturing equipments of sand mold support combined type
Method of printing, comprising:
Step 1, the printing head for controlling the sand mold 3D printing system print the first of molding sand support on the substrate
Layer, story height H 1, the first column group and first crossbeam for then controlling double Longmen machine tools leave working region；
Step 2, the second column group for controlling double Longmen machine tools and second cross beam movement, so that the platen on the second connecting plate
The molding sand support of printing is compacted, the layer height of sand mold support at this time becomes k*H1, then controls the second column group and second
Crossbeam leaves working region；
Step 3, the first column group for controlling double Longmen machine tools and first crossbeam movement, so that the work on the first connecting plate
Head successively prints the first layer of metal parts and metal support, story height H 2=k*H1 on substrate；Then the first column is controlled
Group and first crossbeam leave working region；
Step 4 judges whether increasing material manufacturing printing part is completed, if do not completed, repeat the above steps 1-3, alternately
Part is successively printed using two 3D printing systems, and carries out compacting operation using platen after the support printing of every layer of molding sand,
Until completing print job.
Further, the method more includes the separating treatment after the completion of printing, comprising the following steps:
After the completion of part printing, part is separated using sawing or wire cutting mode with substrate, then uses lytic agent
The support of dissolution sand mold, removal residual metallic support are to obtain final metal parts.
By the above technical solution of the present invention as it can be seen that sand mold of the invention supports the double gantry increasing material manufacturing systems of combined type
Printing principle is: being provided simultaneously with the metal 3D printing system and sand mold 3D printing system of electric arc fuse or laser melting coating, thing
First plan two 3D printing systems running track, control movement executing mechanism operate two 3D printing systems carry out replace,
Successively printing part；Metal parts structure is printed by metal 3D printing system, and physical support structure is by sand mold 3D printing system
System is printed；After the completion of part printing, part is separated with substrate using sawing or wire cutting mode, then using dissolution
The support of agent dissolution sand mold, removal residual metallic support are to obtain final metal parts.The present invention can solve conventional arc increasing
Material manufacturing equipment can not print support, cannot manufacture the complicated metal parts with big inclination angle, local hollow out, simultaneously
Printing part problem time-consuming and laborious when being separated with substrate.
Meanwhile the present invention is basic using double portal bench mechanisms, compared to the 3D printing based on multi-axis robot, in safety
Has advantage in property；Simultaneously the present invention can print large scale metal parts, overcome the stamp with the size of multi-axis robot structure by
It is limited to arm exhibition constraint.
It should be appreciated that as long as aforementioned concepts and all combinations additionally conceived described in greater detail below are at this
It can be viewed as a part of the subject matter of the disclosure in the case that the design of sample is not conflicting.In addition, required guarantor
All combinations of the theme of shield are considered as a part of the subject matter of the disclosure.
Can be more fully appreciated from the following description in conjunction with attached drawing present invention teach that the foregoing and other aspects, reality
Apply example and feature.The features and/or benefits of other additional aspects such as illustrative embodiments of the invention will be below
Description in it is obvious, or learnt in practice by the specific embodiment instructed according to the present invention.
Detailed description of the invention
Attached drawing is not intended to drawn to scale.In the accompanying drawings, identical or nearly identical group each of is shown in each figure
It can be indicated by the same numeral at part.For clarity, in each figure, not each component part is labeled.
Now, example will be passed through and the embodiments of various aspects of the invention is described in reference to the drawings, in which:
Fig. 1 is the schematic diagram of the double gantry increasing material manufacturing equipments of sand mold support combined type of one embodiment of the invention, wherein
Metal 3D printing system be electric arc fuse 3D printing system.
Fig. 2 is the schematic diagram of the double gantry increasing material manufacturing equipments of sand mold support combined type of another embodiment of the present invention,
In metal 3D printing system be powder feeding formula 3D printing system.
Fig. 3 is the top view of the printing part of exemplary embodiment of the present.
Fig. 4 is the cross-sectional view of the printing part of exemplary embodiment of the present.
Specific embodiment
In order to better understand the technical content of the present invention, special to lift specific embodiment and institute's accompanying drawings is cooperated to be described as follows.
Various aspects with reference to the accompanying drawings to describe the present invention in the disclosure, shown in the drawings of the embodiment of many explanations.
It is not intended to cover all aspects of the invention for embodiment of the disclosure.It should be appreciated that a variety of designs and reality presented hereinbefore
Those of apply example, and describe in more detail below design and embodiment can in many ways in any one come it is real
It applies, this is to should be conception and embodiment disclosed in this invention to be not limited to any embodiment.In addition, disclosed by the invention one
A little aspects can be used alone, or otherwise any appropriately combined use with disclosed by the invention.
The example in conjunction with shown in Fig. 1,2, the present invention generally propose a kind of double gantry increasing material manufacturings of sand mold support combined type
Equipment, is provided simultaneously with the metal 3D printing system and sand mold 3D printing system of electric arc fuse or laser melting coating, passes through two 3D
Print system carries out alternately, successively printing part and sand mold support；Metal parts structure is printed by metal 3D printing system,
Physical support structure is printed by sand mold 3D printing system；It, will using sawing or wire cutting mode after the completion of part printing
Part is separated with substrate, then using the support of lytic agent dissolution sand mold, removal residual metallic support to obtain final metal
Part.The present invention, which can solve conventional arc increasing material manufacturing equipment, can not print support, cannot manufacture and engrave with big inclination angle, part
The complicated metal parts of the features such as sky, while printing problem time-consuming and laborious when part is separated with substrate.
Fig. 1 show an exemplary embodiment party of the double gantry increasing material manufacturing equipments of sand mold support combined type of the invention
Formula, wherein metal 3D printing system is electric arc fuse 3D printing system, for printing metal parts.
As shown in connection with fig. 1, the double gantry increasing material manufacturing equipments of sand mold support combined type include: including electric arc fuse 3D printing system
System, sand mold 3D printing system, double Longmen machine tools, workbench and control system.Control system is configured to beat with the metal 3D
Print system, sand mold 3D printing system and double Longmen machine tools are electrically connected respectively, for controlling its operation.
In embodiment as shown in Figure 1, control system is arranged to a control cabinet 4, internal setting power circuit, control
Circuit, communication line etc. are used to control the assembly of two print systems (sand mold 3D printing and the 3D printing of electric arc fuse), such as firmly
Part and/or software it is integrated, to realize the control to print procedure.
In conjunction with Fig. 1, double Longmen machine tools have a pair of of pedestal 31 as the lathe bed component of lathe and are relatively installed to ground
On.Two groups of columns, respectively the first column group and the second column group are installed respectively on opposite pedestal.First column group has two
A left column 321 and two right columns 322.Two left columns 321 are respectively oppositely arranged in corresponding on opposite pedestal 31
Position, the left side in diagram.Corresponding position on opposite pedestal 31 is respectively oppositely arranged in two right columns 322,
Positioned at the right side of diagram.
In conjunction with Fig. 1, the first column group and the second column group be each arranged to can relative to pedestal 31 sliding motion, and limit
Having determined glide direction is X-direction.Movement mechanism is preferably linear motor or the transmission of rotating electric machine combination belt/chain.
Such as Fig. 1, first crossbeam 331 is provided in the first column group.Specifically, first crossbeam 331 is installed to across ground
On two columns 321 of one column group, first crossbeam 331 is arranged along the movement of vertical direction defined in column 321, and
The direction of motion is limited as Z-direction.That is, direction as shown in Figure 1, first crossbeam 331 can carry out vertical direction along column 321
Movement.Movement mechanism is preferably rotating electric machine combination worm-drive.
Such as Fig. 1, it is provided with the first connecting plate 351 on first crossbeam 331, being configured to can be along defined in first crossbeam
Direction movement, and the direction of motion is limited as the direction Y1.Direction i.e. as shown in Figure 1, the first connecting plate 351 can be along first crossbeam
331 movements, movement mechanism are preferably linear motor or the transmission of rotating electric machine combination belt/chain.
Such as Fig. 1, second cross beam 332 is provided in the second column group.Specifically, second cross beam 332 is installed to across ground
On two columns 322 of two column groups, second cross beam 332 is arranged along the movement of vertical direction defined in column 322, and
The direction of motion is limited as Z-direction.That is, direction as shown in Figure 1, first crossbeam 331 can carry out vertical direction along column 322
Movement.Movement mechanism is preferably rotating electric machine combination worm-drive.
The second connecting plate 352 is provided on second cross beam 332, being configured to can be along side defined in second cross beam 332
To movement, and the direction of motion is limited as the direction Y2.Direction i.e. as shown in Figure 1, the second connecting plate 352 can be along second cross beam
332 movements, movement mechanism are preferably linear motor or the transmission of rotating electric machine combination belt/chain.
Such as Fig. 1, workbench 34 is arranged between two pedestals 31 of double Longmen machine tools, constitutes the workspace of increasing material manufacturing
Domain, and the substrate 54 for fixing increasing material manufacturing printing.
Such as Fig. 1, appended drawing reference 5 indicates the metal parts of printing.
Such as Fig. 1, the electric arc fuse 3D printing system for constituting metal 3D printing system has one to be used to carry out on the substrate 54
The work head 11 of metal 3D printing.Such as Fig. 1, the electric arc fuse 3D printing system also have wire-feed motor 12, wire tray 13-1 and
Welding machine electric power 14, for welding gun 11 as the aforementioned work head for carrying out 3D printing, wire tray 12 is interior to place metal welding wire, wire-feed motor 13-1 quilt
Front end for metal welding wire to be transmitted to welding gun 11 is set, and welding machine electric power 14 is provided in after it is activated in welding gun front end
Thermal energy is converted electrical energy into melt metal welding wire to molten condition, and carries out metal 3D printing on the substrate 54.
Sand mold 3D printing system includes printing head 21, fortune sand pipeline 22, extrusion mechanism 23 and feed bin 24, in feed bin 24
The sand mold powder that fine sand powder and bonding agent mix is stored, extrusion mechanism 23 is configured to will to pass through fortune sand pipeline 22
Sand mold powder is delivered to printing head 21, and printing head 21 is used to spray sand mold powder to carry out sand mold on the substrate 54
3D printing.
Such as Fig. 1, printing head 21 and welding gun 11 are fixed on the first connecting plate 351 side by side and at interval.
Preferably, the operating point of the welding gun 11 of electric arc fuse 3D printing system and the operating point of printing head 21 are contour, with
Ensure during printing alternate, welding gun or printing head are done with part generation has been printed when can effectively avoid printing complex model
It relates to and collides.
In conjunction with Fig. 1, a platen 36 is fixed on the second connecting plate 352, platen 36 is configured to have towards substrate and push
Plane, to be compacted printing molding sand powder.
In conjunction with Fig. 1 and the construction of gantry machine tool above-mentioned, in print procedure, control cabinet 4 is vertical by control two
The movement of column (321,322), two crossbeams (331,332) and the first connecting plate 351 and the second connecting plate 352, so that first
The printing head 21 of sand mold 3D printing system on connecting plate prints the work of sand mold support and metal 3D printing system on substrate
Make head (welding gun 11) successively printed on substrate metal parts and metal support print job alternately, wherein every layer of sand mold
Compacting operation is carried out by the platen 36 on the second connecting plate 352 after support printing.
Specifically, after each layer of printing sand mold support, the movement of double Longmen machine tools is controlled, so that the second connecting plate
352 movements drive platen movement to be compacted the sand mold support of printing.
As illustrated in fig. 1, it is preferred that the movement of the X-direction, the direction Y1, the direction Y2 and Z-direction is provided with movement and leads
To mechanism, such as slide rail type guiding mechanism.
The schematic diagram of the double gantry increasing material manufacturing equipments of sand mold support combined type of Fig. 2 formula another embodiment of the present invention,
In double Longmen machine tools use identical construction, pedestal therein, column, crossbeam, connecting plate are all made of identical structure, connection side
Formula illustrates for simplicity, uses identical appended drawing reference.
In Fig. 1 the embodiment described, sand mold 3D printing system uses structure identical with Fig. 1 and connection relationship, herein not
It repeats again.
As shown in Fig. 2, distinguishing with Fig. 1 embodiment, the metal 3D printing system in the present embodiment is powder feeding formula gold
Belong to 3D printing system, i.e. cladding formula 3D printing system, including powder feeding formula laser Machining head 15, optical fiber 16, laser 17 and powder feeding
Device 18.In the present embodiment, powder feeding formula laser Machining head is as work head above-mentioned, for carrying out metal 3D printing.
Powder feeder 18 is arranged for storage metal powder, and metal powder is delivered to powder feeding formula laser by powder feeder 18
The front end of processing head 15；Laser 17 is used to emit the laser beam of the high-energy density of setting, is transmitted to powder feeding by optical fiber 16
Formula laser Machining head 15, and by inside powder feeding formula laser Machining head optical module collimation, focus after melt metal powder, into
Row powder feeding formula metal 3D printing.
Similarly, printing head 21 and powder feeding formula laser Machining head 15 are fixed to the first connecting plate side by side and at interval
On 351.
Preferably, the operating point of powder feeding formula laser Machining head 15 and the operating point of printing head 21 are contour, to ensure handing over
For in print procedure, can effectively avoid printing complex model when welding gun or printing head and printed part generate interfere and touch
It hits.
The platen 36 of second connecting plate 352 similarly has plane, the type to be compacted printing pushed towards substrate 54
Emery dust end.
In the figure 2 example, the movement of X-direction, the direction Y1, the direction Y2 and Z-direction is provided with movement guide mechanism.
In conjunction with Fig. 2 and the construction of gantry machine tool above-mentioned, in print procedure, control cabinet 4 is vertical by control two
The movement of column (321,322), two crossbeams (331,332) and the first connecting plate 351 and the second connecting plate 352, so that first
The printing head 21 of sand mold 3D printing system on connecting plate prints the work of sand mold support and metal 3D printing system on substrate
Make head (powder feeding formula laser Machining head 15) successively printed on substrate metal parts and metal support print job alternately,
Compacting operation is wherein carried out by the platen 36 on the second connecting plate 352 after every layer of sand mold support printing.
In conjunction with two exemplary embodiments of Fig. 1 and Fig. 2, control system (such as control cabinet 4) controls metal 3D printing system
During carrying out 3D printing with sand mold 3D printing system, the printing of the first layer is to be carried out by sand mold 3D printing system
The 3D printing of molding sand powder.
As shown in Figure 3,4, the double gantry increasing material manufacturing equipments of combined type of the invention, are provided simultaneously with powder feeding formula metal 3D printing
System and sand mold 3D printing system, the running track and speed of the good double Longmen machine tools of advance planning, are read by control cabinet 4 and are identified
Afterwards, the movement of double Longmen machine tools is controlled, operation printing head 21 starts to print the first layer of sand mold support 52, layer on the substrate 54
High H1, controls column 321 and crossbeam 331 leaves working region；Then double Longmen machine tool movements are controlled, operate platen 36 for sand mold
52 compacting of support, the first of sand mold support at this time 52 is high layer by layer to become k*H1, and k is compacting ratio.Control right column 322 and crossbeam
332 leave working region；Left column 321 and cross member 331 and the first connecting plate 35-1 movement, control work head are controlled again in substrate
The first layer that metal parts 51 and metal support 53 are printed on 54, guarantees story height H 2=k*H1, controls 321 He of left column component
Left beam part 331 leaves working region.So two 3D printing systems, which are used alternatingly, successively prints part 5, wherein metal zero
Part and each layer of height of sand mold support are set for according to above-mentioned first layer.
In conjunction with Fig. 1,2, a kind of disclosure according to the present invention, it is also proposed that double gantry increasing material manufacturing equipments of sand mold support combined type
Increasing material manufacturing Method of printing, comprising:
Step 1, the printing head for controlling the sand mold 3D printing system print the first of molding sand support on the substrate
Layer, story height H 1, the first column group and first crossbeam for then controlling double Longmen machine tools leave working region；
Step 2, the second column group for controlling double Longmen machine tools and second cross beam movement, so that the platen on the second connecting plate
The molding sand support of printing is compacted, the layer height of sand mold support at this time becomes k*H1, then controls the second column group and second
Crossbeam leaves working region；
Step 3, the first column group for controlling double Longmen machine tools and first crossbeam movement, so that the work on the first connecting plate
Head successively prints the first layer of metal parts and metal support, story height H 2=k*H1 on substrate；Then the first column is controlled
Group and first crossbeam leave working region；
Step 4 judges whether increasing material manufacturing printing part is completed, if do not completed, repeat the above steps 1-3, alternately
Part is successively printed using two 3D printing systems, and carries out compacting operation using platen after the support printing of every layer of molding sand,
Wherein metal parts and each layer of height of sand mold support are set for according to above-mentioned first layer, are made until completing printing
Industry.
Further, the method more includes the separating treatment after the completion of printing, comprising the following steps:
After the completion of part printing, part is separated using sawing or wire cutting mode with substrate, then uses lytic agent
The support of dissolution sand mold, removal residual metallic support are to obtain final metal parts.
By the above technical solution of the present invention as it can be seen that sand mold of the invention supports the double gantry increasing material manufacturing systems of combined type
Printing principle is: being provided simultaneously with the metal 3D printing system and sand mold 3D printing system of electric arc fuse or laser melting coating, thing
First plan two 3D printing systems running track, control movement executing mechanism operate two 3D printing systems carry out replace,
Successively printing part；Metal parts structure is printed by metal 3D printing system, and physical support structure is by sand mold 3D printing system
System is printed；After the completion of part printing, part is separated with substrate using sawing or wire cutting mode, then using dissolution
The support of agent dissolution sand mold, removal residual metallic support are to obtain final metal parts.The present invention can solve conventional arc increasing
Material manufacturing equipment can not print support, cannot manufacture the complicated metal parts with big inclination angle, local hollow out, simultaneously
Printing part problem time-consuming and laborious when being separated with substrate.
Although the present invention has been disclosed as a preferred embodiment, however, it is not to limit the invention.Skill belonging to the present invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (10)
1. a kind of double gantry increasing material manufacturing equipments of sand mold support combined type, which is characterized in that including metal 3D printing system, sand mold
3D printing system, double Longmen machine tools, workbench and control system, in which:
Double Longmen machine tools have a pair of of pedestal, install two groups of columns, respectively the first column group respectively on opposite pedestal
With the second column group, the first column group and the second column group are each arranged to can be relative to pedestal sliding motion, and defines cunning
Dynamic direction is X-direction；
It is provided with first crossbeam in the first column group, on two columns that ground is installed to the first column group, first is horizontal
Beam is arranged along the movement of vertical direction defined in column, and limits the direction of motion as Z-direction；It is set on the first crossbeam
It is equipped with the first connecting plate, is configured to move along direction defined in first crossbeam, and limits the direction of motion as the direction Y1；
It is provided with second cross beam in the second column group, on two columns that ground is installed to the second column group, second is horizontal
Beam is arranged along the movement of vertical direction defined in column, and limits the direction of motion as Z-direction；It is set on the second cross beam
It is equipped with the second connecting plate, is configured to move along direction defined in second cross beam, and limits the direction of motion as the direction Y2；
The workbench is arranged between two pedestals of double Longmen machine tools, constitutes the working region of increasing material manufacturing, and for solid
Determine the substrate of increasing material manufacturing printing；
The metal 3D printing system is with one for the work head in the enterprising row metal 3D printing of substrate；The sand mold 3D printing
System has a printing head, is sprayed sand mold powder to carry out sand mold 3D printing, institute on the substrate by printing head
It states printing head and work head and is fixed on first connecting plate side by side and at interval；
Be fixed with a platen on second connecting plate, the platen be configured to the plane pushed towards substrate, to
It is compacted the molding sand powder of printing；
The control system is configured to electric respectively with the metal 3D printing system, sand mold 3D printing system and double Longmen machine tools
Gas connection, for controlling its operation, comprising: pass through two columns of control, two crossbeams and the first connecting plate and the second connection
The movement of plate, so that the printing head of the sand mold 3D printing system on the first connecting plate prints sand mold support and metal on substrate
The work head of 3D printing system successively printed on substrate metal parts and metal support print job alternately, wherein often
Compacting operation is carried out by the platen on second connecting plate after layer sand mold support printing.
2. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 1, which is characterized in that the metal
3D printing system is electric arc fuse 3D printing system, including welding gun, wire-feed motor, wire tray and welding machine electric power, the welding gun conduct
The work head；Metal welding wire is placed in the wire tray, wire-feed motor is arranged for before metal welding wire is transmitted to welding gun
End, welding machine electric power, which is provided in after it is activated, converts electrical energy into thermal energy in welding gun front end to melt metal welding wire to melting
State, and metal 3D printing is carried out on the substrate.
3. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 2, which is characterized in that the electric arc
The welding gun of fuse 3D printing system and the operating point of printing head are contour.
4. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 1, which is characterized in that the metal
3D printing system is powder feeding formula metal 3D printing system, including powder feeding formula laser Machining head, optical fiber, laser and powder feeder；Institute
Powder feeding formula laser Machining head is stated as the work head；Powder feeder is arranged for storage metal powder, passes through the powder feeding
Metal powder is delivered to the front end of powder feeding formula laser Machining head by device；Laser is used to emit the laser of the high-energy density of setting
Beam is transmitted to powder feeding formula laser Machining head by the optical fiber, and quasi- by the optical module inside powder feeding formula laser Machining head
Directly, melt metal powder after focusing, carry out the metal 3D printing of powder feeding formula.
5. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 4, which is characterized in that the powder feeding
The operating point of formula laser Machining head and printing head is contour.
6. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 1, which is characterized in that the control
During system controls the metal 3D printing system and the progress 3D printing of sand mold 3D printing system, the first layer is printed to
Pass through the 3D printing for the molding sand powder that sand mold 3D printing system carries out.
7. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 1, which is characterized in that the sand mold
3D printing system includes printing head, fortune sand pipeline, extrusion mechanism and feed bin, stores fine sand powder in feed bin and bonding agent is mixed
Sand mold powder made of conjunction, extrusion mechanism are configured to sand mold powder is delivered to printing head by fortune sand pipeline, and
Sand mold 3D printing is carried out on the substrate.
8. the double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 1, which is characterized in that the side X
Movement guide mechanism is provided with to the movement of the, direction Y1, the direction Y2 and Z-direction.
9. a kind of increasing material system of any one of -8 double gantry increasing material manufacturing equipments of sand mold support combined type according to claim 1
Make Method of printing characterized by comprising
Step 1, the printing head for controlling the sand mold 3D printing system print the first layer of molding sand support, layer on the substrate
High H1, the first column group and first crossbeam for then controlling double Longmen machine tools leave working region；
Step 2, the second column group for controlling double Longmen machine tools and second cross beam movement, so that the platen on the second connecting plate is fought each other
The molding sand support of print is compacted, and the layer height of sand mold support at this time becomes k*H1, then controls the second column group and second cross beam
Leave working region；
Step 3, the first column group for controlling double Longmen machine tools and first crossbeam movement, so that the work head on the first connecting plate exists
The first layer of metal parts and metal support, story height H 2=k*H1 are successively printed on substrate；Then control the first column group and
First crossbeam leaves working region；
Step 4 judges whether increasing material manufacturing printing part is completed, if do not completed, repeat the above steps 1-3, is used alternatingly
Two 3D printing systems successively print part, and carry out compacting operation using platen after the support printing of every layer of molding sand, until
Complete print job.
10. increasing material manufacturing Method of printing according to claim 9, which is characterized in that the method more includes to have printed
Separating treatment after, comprising the following steps:
After the completion of part printing, part is separated with substrate using sawing or wire cutting mode, is then dissolved using lytic agent
Sand mold support, removal residual metallic support are to obtain final metal parts.
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Denomination of invention: Additive manufacturing equipment and printing method of sand mold supported composite double gantry Effective date of registration: 20210225 Granted publication date: 20201023 Pledgee: Bank of Jiangsu Limited by Share Ltd. Nanjing Hexi Branch Pledgor: NANJING ZHONGKE RAYCHAM TECHNOLOGY Co.,Ltd. Registration number: Y2021980001307 |