CN114700504B - Continuous gradient material powder spreading system, method, electronic equipment and storage medium - Google Patents
Continuous gradient material powder spreading system, method, electronic equipment and storage medium Download PDFInfo
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- CN114700504B CN114700504B CN202210383341.6A CN202210383341A CN114700504B CN 114700504 B CN114700504 B CN 114700504B CN 202210383341 A CN202210383341 A CN 202210383341A CN 114700504 B CN114700504 B CN 114700504B
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- 239000000843 powder Substances 0.000 title claims abstract description 670
- 238000003860 storage Methods 0.000 title claims abstract description 163
- 239000000463 material Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000007480 spreading Effects 0.000 title claims abstract description 44
- 238000003892 spreading Methods 0.000 title claims abstract description 44
- 230000000712 assembly Effects 0.000 claims abstract description 60
- 238000000429 assembly Methods 0.000 claims abstract description 60
- 230000008569 process Effects 0.000 claims abstract description 18
- 230000001965 increasing effect Effects 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 33
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Classifications
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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
- B22F12/60—Planarisation devices; Compression devices
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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
- B22F10/30—Process control
- B22F10/37—Process control of powder bed aspects, e.g. density
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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
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
-
- 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
- B22F12/90—Means for process control, e.g. cameras or sensors
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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
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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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- Materials Engineering (AREA)
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Abstract
The invention relates to the technical field of metal material increase, and particularly discloses a continuous gradient material powder spreading system, a continuous gradient material powder spreading method, electronic equipment and a storage medium, wherein the continuous gradient material powder spreading system comprises at least two powder feeding assemblies, a powder storage assembly and a powder spreading assembly which are sequentially arranged from top to bottom; the system further comprises: the moving assembly is used for driving the powder feeding assembly to continuously perform horizontal displacement; the controller is electrically connected with the powder feeding assembly, the powder laying assembly and the moving assembly; according to the system, the controller is used for controlling the moving assembly to drive the powder feeding assembly to move, and the powder feeding speed of the corresponding powder feeding assembly is linearly adjusted according to the positions of the powder feeding assemblies in the moving process of different powder feeding assemblies so as to feed powder to the powder storage assembly, so that the powder amounts of different metal powder in the powder storage assembly linearly change along the length direction of the powder storage assembly, gradient combined powder with continuously-changing proportions and distributed is obtained, and the uniformity and the transition of gradient materials are effectively improved, so that the metal material adding effect is improved.
Description
Technical Field
The application relates to the technical field of metal material increase, in particular to a continuous gradient material powder paving system, a continuous gradient material powder paving method, electronic equipment and a storage medium.
Background
The gradient materials used by the existing material adding equipment are generally obtained by moving different powder feeding components to powder storage grids corresponding to the previously divided intervals, quantitatively feeding the materials one by one and then mixing the materials; the powder feeding assembly feeds by adopting a positioning and quantitative feeding mode, so that each powder storage grid has metal powder with different proportions, and the proportions of the metal powder in the different powder storage grids are set according to gradient changes to obtain gradient materials; however, after the metal materials of each powder storage grid are uniformly mixed, the gradient materials still have obvious proportioning dividing lines at the transition positions between every two powder storage grids, and the defect of nonuniform transition of the gradient materials exists, so that the metal material adding effect is affected.
In view of the above problems, no effective technical solution is currently available.
Disclosure of Invention
The application aims to provide a continuous gradient material powder paving system, a continuous gradient material powder paving method, electronic equipment and a storage medium, wherein the continuous gradient material powder paving system, the continuous gradient material powder paving method, the electronic equipment and the storage medium acquire continuous and uniform transition gradient materials for powder paving.
In a first aspect, the present application provides a continuous gradient material powder spreading system, which is used for spreading gradient material powder, and the system includes a powder feeding assembly, a powder storage assembly and a powder spreading assembly, which are sequentially arranged from top to bottom, wherein the number of the powder feeding assemblies is at least two; the system further comprises:
the moving assembly is used for driving the powder feeding assembly to continuously perform horizontal displacement;
the controller is electrically connected with the powder feeding assembly, the powder spreading assembly and the moving assembly;
the controller is used for controlling the moving assembly to drive the powder feeding assembly to move, and linearly adjusting the powder feeding speed of the corresponding powder feeding assembly according to the position of the powder feeding assembly in the moving process of different powder feeding assemblies so as to feed powder to the powder storage assembly;
the controller is also used for controlling the powder spreading component to mix and spread the powder after the powder storage component is full of the powder.
In the powder paving system of the example, the powder amount of the metal powder of the powder feeding component received by the powder storage component is linearly changed along the length direction of the powder feeding component, so that after the powder storage component is full of the powder, the proportion of the metal powder in the powder storage component is linearly changed along the length direction of the powder storage component, namely, gradient combined powder with continuously-changing proportion distribution is obtained.
The continuous gradient material powder paving system comprises a powder storage component, a powder conveying component and a powder conveying component.
In the powder paving system of the example, the sum of the powder feeding rates of all the powder feeding components corresponding to different horizontal positions of the powder storage component along the length direction determines the material quantity of the gradient combined powder at the position, and the powder feeding rates at all the positions are ensured to be equal, so that the powder storage component can smoothly and uniformly store the powder for paving.
The continuous gradient material powder paving system is characterized in that a powder falling roller for adjusting the powder conveying speed of the powder conveying component is arranged at the discharge end of the powder conveying component, and the controller adjusts the corresponding powder conveying speed of the powder conveying component by adjusting the rotating speed of the powder falling roller.
In the powder paving system of the example, the controller can realize the linear change powder conveying function by controlling the rotating speed of the powder falling roller, and the powder paving system has the characteristics of convenience and accuracy in adjustment.
The controller is used for linearly adjusting the powder feeding speed of the powder feeding component in a continuously increasing or continuously decreasing way.
The continuous gradient material powder paving system comprises two powder conveying assemblies, wherein the two powder conveying assemblies alternately move or synchronously reversely move or synchronously move in the same direction under the driving action of the moving assemblies.
The continuous gradient material powder paving system is characterized in that the moving assembly is an electric screw rod, and the controller is used for calculating the position of the powder feeding assembly according to the rotation quantity of the electric screw rod.
The continuous gradient material powder paving system comprises a powder storage component, a controller, a powder feeding component, a powder storage component and a powder storage component.
In a second aspect, the present application further provides a continuous gradient material powder paving method, which is used for performing gradient material powder paving, and the method is applied to a continuous gradient material powder paving system, where the continuous gradient material powder paving system includes a powder feeding assembly, a powder storage assembly and a powder paving assembly, which are sequentially arranged from top to bottom, and the number of the powder feeding assemblies is at least two; the system further comprises: the moving assembly is used for driving the powder feeding assembly to continuously horizontally displace; the method comprises the following steps:
controlling the moving assembly to drive the powder feeding assembly to move, and linearly adjusting the powder feeding rate of the corresponding powder feeding assembly according to the position of the powder feeding assembly in the moving process of different powder feeding assemblies so as to feed powder to the powder storage assembly;
and after the powder storage component is full of powder, controlling the powder spreading component to mix and spread the powder.
According to the continuous gradient material powder paving method, after the powder storage component is fully filled with powder, the proportion of metal powder in the powder storage component is linearly changed along the length direction of the powder storage component, namely, gradient combined powder with continuously-changing proportion distribution is obtained, and the uniform transition property of the gradient material is effectively improved, so that the metal material increasing effect is improved.
In a third aspect, the present application also provides an electronic device comprising a processor and a memory storing computer readable instructions which, when executed by the processor, perform the steps of the method as provided in the second aspect above.
In a fourth aspect, the present application also provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as provided in the second aspect above.
From the above, the application provides a continuous gradient material powder paving system, a method, electronic equipment and a storage medium, wherein the continuous gradient material powder paving system controls a moving assembly to drive a powder conveying assembly to move through a controller, and the powder conveying speed of the corresponding powder conveying assembly is linearly regulated according to the position of the powder conveying assembly in the moving process of different powder conveying assemblies to convey powder to a powder storage assembly, so that the powder quantity of different metal powder in the powder storage assembly is linearly changed along the length direction of the powder storage assembly, and after the powder storage assembly is fully filled with powder, gradient combined powder with continuously-changed proportion distribution is obtained, so that the metal powder paved by the powder paving assembly has no obvious transition boundary in the length direction of the powder storage assembly, and the uniform transition of the gradient material is effectively improved, so as to improve the metal material adding effect.
Drawings
Fig. 1 is a schematic diagram of an electrical control structure of a continuous gradient material powder paving system according to an embodiment of the present application.
Fig. 2 is a schematic elevational structural view of some preferred embodiments of the continuous gradient material powder paving system provided in the examples of the present application.
Fig. 3 is a schematic elevational structural view of other preferred embodiments of the continuous gradient material powder paving system provided in the examples of this application.
Fig. 4 is a schematic side view of some preferred embodiments of the continuous gradient material powder paving system provided in the examples of this application.
Fig. 5 is a schematic side view of other preferred embodiments of the continuous gradient material powder paving system provided in the examples of this application.
Fig. 6 is a flowchart of a continuous gradient material powder paving method according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Reference numerals: 1. a powder feeding component; 2. a powder storage component; 3. a powder spreading component; 4. a moving assembly; 5. a controller; 6. a distance sensor; 11. a powder falling roller; 12. a connecting gear; 13. the connecting rack; 31. a powder mixing bin; 32. a powder spreading scraper; 301. a processor; 302. a memory; 303. a communication bus.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
1-5, FIGS. 1-5 are schematic diagrams illustrating a continuous gradient material powder paving system for paving gradient materials according to some embodiments of the present application, wherein the system includes a powder feeding assembly 1, a powder storage assembly 2 and a powder paving assembly 3 sequentially arranged from top to bottom, and at least two powder feeding assemblies 1; the system further comprises:
the moving assembly 4 is used for driving the powder feeding assembly 1 to continuously horizontally displace;
the controller 5 is electrically connected with the powder feeding component 1, the powder paving component 3 and the moving component 4;
the controller 5 is used for controlling the moving assembly 4 to drive the powder feeding assembly 1 to move, and linearly adjusting the powder feeding rate of the corresponding powder feeding assembly 1 according to the position of the powder feeding assembly 1 in the moving process of different powder feeding assemblies 1 so as to feed the powder to the powder storage assembly 2;
the controller 5 is also used for controlling the powder spreading component 3 to mix and spread the powder after the powder storage component 2 is full of the powder.
Specifically, when the continuous gradient material powder paving system of the embodiment of the application performs powder paving, the moving component 4 drives the powder conveying component 1 to continuously move from above one end of the powder storage component 2 to above the other end of the powder storage component 2, and the powder conveying component 1 continuously conveys powder to the powder storage component 2 in the moving process, so that the whole powder storage component 2 can receive metal powder along the moving direction of the powder conveying component 1.
More specifically, during the movement of the powder feeding assembly 1, the controller 5 acquires the position of the powder feeding assembly 1 in real time, and adjusts the powder feeding rate of the powder feeding assembly 1 according to the position of the powder feeding assembly 1, so that different positions of the powder storage assembly 2 along the movement direction of the powder feeding assembly 1 can receive different amounts of metal powder fed by the corresponding powder feeding assembly 1.
More specifically, the controller 5 controls the powder feeding assembly 1 to linearly adjust the powder feeding rate such that the powder feeding assembly 1 linearly changes the output amount of the metal powder during the movement such that the powder storage assembly 2 has the metal powder whose amount (mass) in the moving direction of the powder feeding assembly 1 is linearly changed for one metal powder fed out by the same powder feeding assembly 1.
More specifically, the continuous gradient material powder paving system in the embodiment of the present application is provided with at least two powder feeding assemblies 1, and different powder feeding assemblies 1 store different types of metal powder according to process requirements, so after the controller 5 controls all the powder feeding assemblies 1 to feed powder, the powder storage assembly 2 should be understood to receive multiple powder feeding amounts with linear change.
More specifically, the length direction of the powder storage component 2 is parallel to the moving direction of the powder feeding component 1, so that the powder feeding component 1 can feed powder along the length direction of the powder storage component 2, and the powder amount of each metal powder received by the powder storage component 2 is linearly changed along the length direction.
More specifically, each powder feeding assembly 1 is driven by the moving assembly 4 to move from above one end of the powder storage assembly 2 to above the other end of the powder storage assembly 2, so as to finish one powder feeding operation, and the powder storage assembly 2 finishes one or more powder feeding operations by using different powder feeding assemblies 1 to receive metal powder; because the powder feeding amount of the same powder feeding component 1 is linearly changed along the length direction of the powder storage component 2, the powder storage component 2 needs to be fully filled with powder through the cooperation of the powder storage components 2 with different powder feeding rates, namely, the continuous gradient material powder paving system at least has two powder feeding components 1 with different linear adjusting characteristics, so that the powder storage component 2 can be smoothly fully filled with powder under the powder feeding effect of the plurality of powder feeding components 1, and the powder storage components 2 can be used for storing metal powder with different proportions along different powder storage positions in the length direction of the powder storage component 2.
More specifically, the controller 5 in the system of the embodiment of the present application may determine whether the powder storage component 2 is full of powder through a visual camera or a weighing sensor, and may also determine whether the powder storage component 2 is full of powder by identifying whether all the powder feeding components 1 have completed the corresponding number of powder feeding operations; in the embodiment of the present application, the controller 5 preferably determines whether the powder storage assembly 2 is full of powder by recognizing whether all the powder feeding assemblies 1 have completed the corresponding number of powder feeding operations, thereby simplifying the apparatus structure.
More specifically, for a powder feeding component 1, the feeding rate of the powder feeding component is linearly changed along the length direction of the powder storage component 2, so that the powder amount of the metal powder of the powder feeding component 1 received by the powder storage component 2 is linearly changed along the length direction of the powder feeding component, after the powder storage component 2 is fully filled with the powder, the proportion of the metal powder in the powder storage component is linearly changed along the length direction of the powder storage component, namely, gradient combined powder with continuously-changing proportion distribution is obtained, on the basis, the powder mixing and the powder spreading can be carried out to realize gradient powder spreading with uniform transition, so that the metal powder paved by the powder spreading component 3 has no obvious transition boundary in the length direction of the powder storage component 2, and the gradient material uniformity transition is effectively improved, so as to improve the metal material additive effect.
In some preferred embodiments, the embodiments of the present application aim to achieve continuous variable delivery of the powder amount by using the controller 5 to regulate the powder delivery relationship between the powder delivery assembly 1 and the powder storage assembly 2, so in the embodiments of the present application, the moving assembly 4 preferably drives the powder delivery assembly 1 to move at a constant speed, so that the controller 5 can precisely control the powder amount received at different positions on the powder storage assembly 2 by regulating the powder delivery rate of the powder delivery assembly 1, so as to simplify the process of linearly regulating the powder delivery rate of the powder delivery assembly 1 by the controller 5.
In some other embodiments, the powder feeding assembly 1 can also be fixed-speed powder feeding, and the controller 5 adjusts the moving speed of the moving assembly 4 through a variable speed so as to realize linear adjustment of the powder feeding speed of the powder feeding assembly 1 relative to the length direction of the powder storage assembly 2.
In some preferred embodiments, the sum of the powder feeding rates of all the powder feeding modules 1 corresponding to the different horizontal positions of the powder storage module 2 is equal.
Specifically, after all powder feeding components 1 complete one-time powder feeding operation, it is required to ensure that the total amount of metal powder received at different positions of the powder storage component 2 is the same so as to avoid the problems of powder overflow or partial powder spreading missing caused by uneven distribution of the material amount of the gradient combined powder, in this embodiment, the powder feeding rate of the powder feeding component 1 determines the powder amount of the corresponding metal powder received by the powder storage component 2 at the same position of the powder storage component 2, and the sum of the powder feeding rates of all the powder feeding components 1 corresponding to different horizontal positions of the powder storage component 2 along the length direction determines the material amount of the gradient combined powder at the position, so that the powder storage component 2 can smoothly and uniformly store the powder for powder spreading.
In some preferred embodiments, as shown in fig. 4, the discharging end of the powder feeding assembly 1 is provided with a powder feeding roller 11 for adjusting the powder feeding rate thereof, and the controller 5 adjusts the powder feeding rate of the corresponding powder feeding assembly 1 by adjusting the rotation speed of the powder feeding roller 11.
Specifically, the powder feeding assembly 1 comprises a powder hopper and a powder falling roller 11 arranged in the powder hopper, the powder falling roller 11 is driven to rotate by a powder falling motor, and the controller 5 adjusts the powder feeding speed of the powder feeding assembly 1 by adjusting the rotating speed of the powder falling motor, so that in the embodiment of the application, the amounts of the metal powder received at different positions on the powder storage assembly 2 are in direct proportion to the rotating speed of the powder falling roller 11 in the corresponding powder storage assembly 2; the controller 5 can realize the linear change powder feeding function by controlling the rotating speed of the powder falling roller 11, and has the characteristics of convenient and accurate adjustment.
More specifically, the sum of the rotational speeds of all the powder falling rollers 11 corresponding to different horizontal positions of the powder storage assembly 2 is equal, so that the powder storage assembly 2 can smoothly and uniformly store the powder for powder laying.
In some preferred embodiments, the controller 5 linearly adjusts the powder feed rate of the powder feed assembly 1 for continuous increment or continuous decrement.
Specifically, in the technical field of metal additive, the gradient composite materials obtained by mixing different metal materials are generally used to form transition regions of metal materials of different materials, so that for one metal material in the gradient composite materials, the powder amount of the metal material is generally gradually increased or decreased along the length direction of the powder storage component 2, and therefore, in the embodiment of the present application, the controller 5 preferably linearly adjusts the powder feeding rate of the powder feeding component 1 in a continuously increasing or continuously decreasing manner, so that the general use requirement of the gradient composite materials can be met.
In some other embodiments, if there is a special requirement for the changing process of the gradient composite material, the controller 5 may also linearly adjust the powder feeding rate of the powder feeding assembly 1 according to a single curve, a single straight line or a composite line, so as to form a changing composite relationship of different metal material ratios in the length direction of the powder storage assembly 2, for example, the controller 5 linearly adjusts the powder feeding rate of the powder feeding assembly 1 according to one linear type or any combination linear type of a linear function, a sinusoidal function, a parabolic line, and a normal distribution function.
In some preferred embodiments, the number of the powder feeding assemblies 1 is two, and the two powder feeding assemblies 1 are alternately moved or synchronously reversely moved or synchronously moved in the same direction under the driving action of the moving assembly 4.
In particular, for the existing metal additive technology, the gradient composite material generally relates to two materials and a transitional mixed material positioned between the two materials, so that the powder feeding assembly 1 can meet the use requirement by adopting two materials.
More specifically, the two powder feeding assemblies 1 can feed the powder to the powder storage assembly 2 in a mode of simultaneously feeding the powder or feeding the powder sequentially; when two powder feeding assemblies 1 adopt simultaneous powder feeding, the powder feeding can be carried out in a synchronous reverse movement or a synchronous same-direction movement mode.
More specifically, when the two powder feeding components 1 move in the same direction in a synchronous manner, the sum of the feeding rates of the two powder feeding components 1 is a fixed value, that is, the controller 5 controls the feeding rates of the two powder feeding components 1 to be complementary, so that the total amounts of the metal powder received at different positions of the powder storage component 2 are the same; in this embodiment, the controller 5 controls the moving assembly 4 to simultaneously drive the two powder feeding assemblies 1 to move at the same direction and at a constant speed, and controls the rotation speeds of the powder falling rollers 11 of the two powder feeding assemblies 1 according to a preset total rotation speed value, so that the rotation speeds of the two powder falling rollers 11 are respectively continuously increased and continuously decreased, and the total rotation speeds at different moments are equal, wherein the total rotation speed value is the sum of the rotation speeds of the powder falling rollers of all the powder feeding assemblies 1 at the same moment, so that the two powder feeding assemblies 1 feed continuously and uniformly transitional gradient composite materials towards the powder storage assembly 2; the control mode can monitor and adjust the powder feeding rate of the two powder feeding assemblies 1 in real time, and ensures that the equal amount of gradient combined materials are arranged at each position of the powder storage assembly 2.
More specifically, when the two powder feeding components 1 are synchronously moved reversely, the powder feeding rates of the two powder feeding components 1 are the same, that is, the controller 5 controls the two powder feeding components 1 to respectively move reversely and uniformly from the upper parts of the two ends of the powder storage component 2 so that the two powder feeding components 1 move in a mirror image manner at the middle part of the powder storage component 2, and controls the powder dropping rollers 11 of the two powder feeding components 1 to keep the same rotating speed, so as to further ensure that the same amount of gradient combined materials are arranged at each position of the powder storage component 2, in the embodiment, the powder feeding rates of the powder feeding components 1 are changed uniformly, and thus the two powder feeding components 1 feed the continuously and uniformly transitional gradient combined materials towards the powder storage component 2; the control mode controls the two powder feeding assemblies 1 to inject different metal materials towards the powder storage assembly 2 in a mirror image mode, and ensures that the distribution characteristics of the different metal materials have a mirror image symmetry relationship.
More specifically, when the two powder feeding assemblies 1 are sequentially feeding powder, as shown in fig. 2, the two powder feeding assemblies 1 are arranged in parallel along the length direction of the powder storage assembly 2, and the two powder feeding assemblies 1 can alternately feed powder (i.e. one powder feeding assembly 1 starts the other powder feeding assembly 1 to feed powder after finishing feeding powder) or feed powder (i.e. the two powder feeding assemblies 1 move in parallel to feed powder), and the powder feeding assemblies 1 adopt parallel arrangement to enable the fed metal powder of the two powder feeding assemblies 1 to fall into the central line of the powder storage assembly 2, so that the powder mixing of the powder storage assembly 2 is more uniform, and a high-quality gradient composite material is formed.
In some preferred embodiments, as shown in fig. 2, the moving assembly 4 is an electric screw, and the controller 5 is configured to calculate the position of the powder feeding assembly 1 according to the rotation amount of the electric screw.
Specifically, the electric screw rod is composed of a ball screw pair and a servo motor for driving the screw rod to rotate, and has the advantage of high adjustment precision, the controller 5 in the system of the embodiment of the application can acquire the displacement of the screw nut in real time according to the screw rod rotation quantity so as to confirm the displacement of the powder storage component 2, and the powder feeding rate of the powder feeding component 1 can be adjusted in a direct proportion or inverse proportion according to the displacement so as to realize continuous increment or continuous decrement adjustment of the powder feeding rate, and the system has the characteristic of simple control logic.
More specifically, when the powder feeding rate needs to be adjusted according to a specific change curve, the controller 5 obtains a preset change curve related to the gradient composite material in advance, calibrates the relation between the abscissa of the change curve (the position of the powder feeding component 1) and the rotation amount of the screw rod, and then adjusts the powder feeding rate of the powder feeding component 1 in real time according to the rotation amount of the screw rod and the change curve during the movement of the powder feeding component 1.
More specifically, in other embodiments, when the moving component 4 is an electric screw, the controller 5 can calculate and obtain the position of the powder feeding component 1 according to the running time of the electric screw and linearly adjust the powder feeding rate of the corresponding powder feeding component 1 according to the position of the powder feeding component 1 when the controller 5 controls the electric screw to drive the powder feeding component 1 to move.
In some other embodiments, the system according to the embodiments of the present application may further obtain the position of the powder feeding assembly 1 relative to the powder storage assembly 2 through a visual sensor (not shown in the drawings), a position detector (not shown in the drawings), or a distance sensor 6, and adjust the powder feeding rate of the corresponding powder feeding assembly 1 in real time according to the position.
More specifically, as shown in fig. 3, a distance sensor 6 is provided on the frame of the additive apparatus on one side of the powder feeding assembly 1, and the position of the powder feeding assembly 1 is determined by measuring the distance between the powder feeding assembly 1 and the side wall of the frame.
More specifically, in this embodiment, the moving assembly 4 may also be a moving member employing an air cylinder, a hydraulic cylinder, a rack and pinion driving structure, or a traveling belt.
In some preferred embodiments, when the two powder feeding assemblies 1 move synchronously and in the same direction, the two powder feeding assemblies 1 are fixedly connected, and in this embodiment, one electric screw rod can drive the two powder feeding assemblies 1 to move synchronously and in the same direction.
In some other embodiments, as shown in fig. 5, when the two powder feeding assemblies 1 are moved synchronously and reversely, the two powder feeding assemblies 1 can also be moved synchronously and reversely by matching the connecting gear 12 with the connecting rack 13 meshed with the upper end face and the lower end face of the connecting gear 12 respectively, so as to ensure that the two powder feeding assemblies 1 can perform mirror image motion.
In some preferred embodiments, the powder storage assembly 2 has a plurality of equally spaced powder storage grids or one continuous powder storage chamber for storing powder.
Specifically, the powder storage grid and the powder storage cavity are used for storing powder, the powder is fed into the powder spreading component 3 after the powder storage grid or the powder storage cavity is full of powder, and the gradient combined material which is uniformly mixed and has the metal powder proportion distributed along the length direction of the powder storage component 2 is obtained through powder mixing treatment of the powder spreading component 3; the powder storage grid can divide the powder storage component 2 into a plurality of powder storage areas, so that the problem that metal materials are unevenly transited due to the fact that excessive powder is accumulated in a certain powder storage position in a certain time period and is diffused to an adjacent powder storage position (similar to sand heap effect) when the powder feeding component 1 feeds powder can be avoided.
More specifically, the powder storage component 2 conveys the gradient composite material into the powder spreading component 3, and the powder mixing and spreading process performed by the powder spreading component 3 can be implemented by adopting the existing structure of connection conveying, powder mixing and powder spreading, which is not limited and described in detail herein.
In some preferred embodiments, the powder storage assembly 2 is full of powder after the controller 5 controls the powder feeding assembly 1 to feed powder multiple times.
Specifically, after the two powder feeding assemblies 1 perform one-time powder feeding operation, the powder feeding assembly 2 is treated as one-time powder feeding, and the original one-time powder feeding operation is changed into multiple powder feeding operations, so that the problem that metal materials are unevenly transited due to the fact that excessive powder is accumulated in a certain powder storage position for a period of time and then is diffused to an adjacent powder storage position can be avoided; the powder feeding mode is particularly suitable for the powder storage assembly 2 with a continuous powder storage cavity.
In some preferred embodiments, the axis of the powder falling roller 11 is parallel to the length direction of the powder storage component 2, and the powder falling roller 11 is used for feeding powder towards the inner wall side of the powder storage cavity of the powder storage component 2.
Specifically, as shown in fig. 4, the powder feeding rollers 11 of the two powder feeding assemblies 1 are respectively used for feeding powder towards two inner wall sides of the powder storage cavity of the powder storage assembly 2, so that the mutual influence of powder accumulation sent by the two powder feeding assemblies 1 can be avoided, and the distribution condition of the metal powder quantity along the length direction of the powder storage assembly 2 is ensured to conform to the expected design.
In some other embodiments, the axis of the powder falling roller 11 may be perpendicular to the length direction of the powder storage component 2.
In some preferred embodiments, the powder spreading assembly 3 comprises: a powder mixing bin 31 and a powder spreading scraper 32 arranged below the powder mixing bin 31; wherein, mix the powder storehouse 31 in be equipped with controller 5 electric connection's blender, spread powder scraper 32 and be used for scraping the powder in order to realize spreading the powder when controller 5 control spreads powder subassembly 3 removal.
In a second aspect, referring to fig. 6, fig. 6 is a schematic diagram of a continuous gradient material powder paving method according to some embodiments of the present application, where the method is applied to a continuous gradient material powder paving system, and the continuous gradient material powder paving system includes a powder feeding assembly 1, a powder storage assembly 2, and a powder paving assembly 3 sequentially arranged from top to bottom, where the number of powder feeding assemblies 1 is at least two; the system further comprises: the moving assembly 4 is used for driving the powder feeding assembly 1 to continuously horizontally displace; the method comprises the following steps:
s1, controlling a moving assembly 4 to drive a powder feeding assembly 1 to move, and linearly adjusting the powder feeding rate of the corresponding powder feeding assembly 1 according to the position of the powder feeding assembly 1 in the moving process of different powder feeding assemblies 1 so as to feed powder to a powder storage assembly 2;
s2, controlling the powder spreading component 3 to mix and spread the powder after the powder storage component 2 is full of the powder.
According to the continuous gradient material powder spreading method, after the powder storage component 2 is fully filled with powder, the proportion of metal powder in the powder storage component is linearly changed along the length direction of the powder storage component, namely gradient combined powder with continuously-changing proportion distribution is obtained, on the basis, powder mixing and powder spreading can be carried out, and even gradient powder spreading can be realized, so that the metal powder spread by the powder spreading component 3 has no obvious transition boundary in the length direction of the powder storage component 2, the even transition of the gradient material is effectively improved, and the metal material adding effect is improved.
In some preferred embodiments, the process of performing step S1 should satisfy: the sum of the powder feeding rates of all the powder feeding assemblies 1 corresponding to different horizontal positions of the powder storage assembly 2 is equal.
In some preferred embodiments, the discharging end of the powder feeding assembly 1 is provided with a powder falling roller 11 for adjusting the powder feeding rate thereof, and the step of linearly adjusting the powder feeding rate of the corresponding powder feeding assembly 1 according to the position of the powder feeding assembly 1 to feed the powder to the powder storage assembly 2 comprises: the rotation speed of the powder falling roller 11 of the corresponding powder feeding assembly 1 is linearly regulated according to the position of the powder feeding assembly 1 so as to feed the powder to the powder storage assembly 2.
In some preferred embodiments, the process of linearly adjusting the powder feeding rate of the corresponding powder feeding assembly 1 is: the powder feeding rate of the powder feeding assembly 1 is linearly adjusted in a continuously increasing or continuously decreasing manner.
In a third aspect, referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application, where the present application provides an electronic device, including: processor 301 and memory 302, the processor 301 and memory 302 being interconnected and in communication with each other by a communication bus 303 and/or other form of connection mechanism (not shown), the memory 302 storing a computer program executable by the processor 301, which when run by a computing device, the processor 301 executes to perform the method in any of the alternative implementations of the embodiments described above.
In a fourth aspect, embodiments of the present application provide a storage medium having stored thereon a computer program which, when executed by a processor, performs a method in any of the alternative implementations of the embodiments described above. The storage medium may be implemented by any type of volatile or nonvolatile Memory device or combination thereof, such as static random access Memory (Static Random Access Memory, SRAM), electrically erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk.
In summary, the embodiment of the application provides a continuous gradient material powder paving system, a method, electronic equipment and a storage medium, wherein the continuous gradient material powder paving system controls a moving assembly 4 to drive a powder feeding assembly 1 to move through a controller 5, and linearly adjusts the powder feeding speed of a corresponding powder feeding assembly 1 according to the position of the powder feeding assembly 1 in the moving process of different powder feeding assemblies 1 to feed powder to a powder storage assembly 2, so that the powder amount of different metal powder in the powder storage assembly 2 is linearly changed along the length direction of the powder storage assembly, and after the powder storage assembly 2 is fully filled with powder, gradient combined powder with continuously-changing mixture ratio is obtained, so that the metal powder paved by the powder paving assembly 3 has no obvious transition boundary in the length direction of the powder storage assembly 2, and the uniform transition of the gradient material is effectively improved, so as to improve the metal material adding effect.
In the embodiments provided herein, it should be understood that the disclosed methods may be implemented in other ways
Further, the units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Furthermore, functional modules in various embodiments of the present application may be integrated together to form a single portion, or each module may exist alone, or two or more modules may be integrated to form a single portion.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (8)
1. A continuous gradient material powder paving system for carrying out gradient material powder paving, the system includes from top to bottom in proper order send powder subassembly (1), store up powder subassembly (2) and shop powder subassembly (3), its characterized in that, the system still includes:
the moving assembly (4) is used for driving the powder feeding assembly (1) to continuously horizontally move;
the controller (5) is electrically connected with the powder feeding component (1), the powder spreading component (3) and the moving component (4);
the two powder feeding assemblies are arranged, the two powder feeding assemblies (1) are matched with a connecting gear (12) and a connecting rack (13) which is meshed with the upper end face and the lower end face of the connecting gear (12) respectively to realize synchronous reverse movement, the moving assembly (4) drives the powder feeding assemblies (1) to continuously move to the position above one end of the powder storage assembly (2) from the position above the other end of the powder storage assembly (2), and the powder feeding assemblies (1) continuously feed the powder storage assembly (2) in the moving process, so that the whole powder storage assembly (2) can receive powder along the moving direction of the powder feeding assemblies (1);
the controller (5) is used for controlling the moving assembly (4) to drive the powder feeding assembly (1) to move, and linearly adjusting the powder feeding rate of the corresponding powder feeding assembly (1) according to the position of the powder feeding assembly (1) in the moving process of different powder feeding assemblies (1) so as to feed the powder to the powder storage assembly (2), and the controller (5) is used for linearly adjusting the powder feeding rate of the powder feeding assembly (1) in a continuously increasing or continuously decreasing manner;
the controller (5) is also used for controlling the powder spreading component (3) to mix and spread the powder after the powder storage component (2) is full of the powder.
2. Continuous gradient material powder spreading system according to claim 1, wherein the sum of the powder feeding rates of all the powder feeding assemblies (1) corresponding to the different horizontal positions of the powder storage assembly (2) is equal.
3. The continuous gradient material powder paving system according to claim 1, wherein the powder feeding component (1) is provided with a powder feeding roller (11) at a discharging end for adjusting a powder feeding rate thereof, and the controller (5) adjusts the powder feeding rate of the corresponding powder feeding component (1) by adjusting the rotating speed of the powder feeding roller (11).
4. Continuous gradient material powder spreading system according to claim 1, wherein the moving assembly (4) is an electric screw, the controller (5) being adapted to calculate the position of the powder feeding assembly (1) depending on the amount of rotation of the electric screw.
5. The continuous gradient material powder spreading system according to claim 1, wherein the powder storage assembly (2) is full of powder after the controller (5) controls the powder feeding assembly (1) to feed powder a plurality of times.
6. The continuous gradient material powder spreading method is applied to a continuous gradient material powder spreading system, and the continuous gradient material powder spreading system comprises a powder feeding component (1), a powder storage component (2) and a powder spreading component (3) which are sequentially arranged from top to bottom, and is characterized by further comprising: the moving assembly (4) is used for driving the powder feeding assembly (1) to continuously horizontally move; the two powder feeding assemblies are arranged, the two powder feeding assemblies (1) are matched with a connecting gear (12) and a connecting rack (13) which is meshed with the upper end face and the lower end face of the connecting gear (12) respectively to realize synchronous reverse movement, the moving assembly (4) drives the powder feeding assemblies (1) to continuously move to the position above one end of the powder storage assembly (2) from the position above the other end of the powder storage assembly (2), and the powder feeding assemblies (1) continuously feed the powder storage assembly (2) in the moving process, so that the whole powder storage assembly (2) can receive powder along the moving direction of the powder feeding assemblies (1);
the method comprises the following steps:
controlling the moving assembly (4) to drive the powder feeding assembly (1) to move, and linearly adjusting the powder feeding rate of the corresponding powder feeding assembly (1) according to the position of the powder feeding assembly (1) in the moving process of different powder feeding assemblies (1) so as to feed the powder to the powder storage assembly (2), wherein the powder feeding rate is continuously increased or continuously decreased and linearly adjusted;
after the powder storage component (2) is full of powder, the powder spreading component (3) is controlled to mix and spread the powder.
7. An electronic device comprising a processor and a memory storing computer readable instructions that, when executed by the processor, perform the steps in the method of claim 6.
8. A storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of claim 6.
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