CN114700504A - Continuous gradient material powder laying system and method, electronic equipment and storage medium - Google Patents
Continuous gradient material powder laying system and method, electronic equipment and storage medium Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 79
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- 238000000429 assembly Methods 0.000 claims abstract description 70
- 230000008569 process Effects 0.000 claims abstract description 18
- 230000007480 spreading Effects 0.000 claims abstract description 14
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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
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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
- B22F12/90—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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Abstract
The invention relates to the technical field of metal additive, and particularly discloses a continuous gradient material powder laying system, a method, electronic equipment and a storage medium, wherein the system comprises a powder feeding component, a powder storage component and a powder laying component which are sequentially arranged from top to bottom, and the number of the powder feeding components 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 system drives the powder feeding assembly to move by controlling the moving assembly through the controller, and the powder feeding speed of the corresponding powder feeding assembly is linearly adjusted according to the position of the powder feeding assembly in the moving process of different powder feeding assemblies so as to feed the powder to the powder storage assembly, so that the powder amount of different metal powder in the powder storage assembly is linearly changed along the length direction of the powder amount, the gradient combined powder distributed in a matching continuous change manner is obtained, the uniform transition of a gradient material is effectively improved, and the metal material increase effect is improved.
Description
Technical Field
The application relates to the technical field of metal additive, in particular to a continuous gradient material powder laying system and method, electronic equipment and a storage medium.
Background
The gradient material used by the existing additive equipment is generally obtained by moving different powder feeding components to a corresponding powder storage grid which is divided into intervals in advance, quantitatively feeding materials one by one and then mixing; the powder feeding component feeds materials in 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 change to obtain a gradient material; however, after the metal materials of each powder storage grid are uniformly mixed, the gradient material still has an obvious proportioning boundary at the transition position between every two powder storage grids, and the defect of nonuniform transition of the gradient material exists, so that the metal additive effect is influenced.
In view of the above problems, no effective technical solution exists at present.
Disclosure of Invention
The application aims to provide a continuous gradient material powder laying system, a continuous gradient material powder laying method, electronic equipment and a storage medium, and the continuous and uniform transition gradient material powder laying is obtained.
In a first aspect, the application provides a continuous gradient material powder laying system, which is used for performing gradient material powder laying and comprises at least two powder feeding assemblies, at least two powder storage assemblies and at least two powder laying assemblies which are arranged in sequence 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 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 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 the powder to the powder storage assembly;
the controller is also used for controlling the powder paving component to mix and pave powder after the powder storage component is full of powder.
In the powder paving system of this example, the amount of the metal powder received by the powder storage assembly from the powder feeding assembly changes linearly along the length direction thereof, so that after the powder storage assembly is filled with the metal powder, the ratio of the metal powder in the powder storage assembly changes linearly along the length direction thereof, that is, the gradient combined powder with continuously changing and distributed ratio is obtained.
The continuous gradient material powder laying system is characterized in that the sum of the powder feeding rates of all the powder feeding assemblies corresponding to the different horizontal positions of the powder storage assembly is equal.
In the powder paving system of the example, the sum of the powder feeding rates of all the powder feeding assemblies corresponding to different horizontal positions of the powder storage assembly along the length direction determines the material amount 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 assembly can smoothly and uniformly store the powder for powder paving.
The continuous gradient material powder laying system is characterized in that a powder falling roller used for adjusting the powder feeding speed of the powder feeding assembly is arranged at the discharge end of the powder feeding assembly, and the controller adjusts the corresponding powder feeding speed of the powder feeding assembly 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 feeding function by controlling the rotating speed of the powder dropping roller, and has the characteristics of convenience and accuracy in adjustment.
The continuous gradient material powder laying system is characterized in that the controller linearly adjusts the powder feeding rate of the powder feeding assembly in a continuously increasing or continuously decreasing mode.
The continuous gradient material powder laying system is characterized in that the number of the powder feeding assemblies is two, and the two powder feeding assemblies move alternatively or synchronously in opposite directions or synchronously in the same direction under the driving action of the moving assembly.
The continuous gradient material powder laying 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 laying system is characterized in that the powder storage assembly is filled with powder after the controller controls the powder feeding assembly to feed powder for multiple times.
In a second aspect, the application further provides a continuous gradient material powder laying method, which is used for gradient material powder laying and is applied to a continuous gradient material powder laying system, wherein the continuous gradient material powder laying system comprises at least two powder feeding assemblies, at least two powder storage assemblies and at least two powder laying assemblies which are arranged from top to bottom in sequence; the system further comprises: the moving assembly is used for driving the powder feeding assembly to continuously perform horizontal displacement; 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 the powder to the powder storage assembly;
and after the powder storage assembly is full of powder, controlling the powder paving assembly to mix and pave powder.
According to the continuous gradient material powder paving method, after the powder storage assembly is filled with the powder, the proportion of the metal powder in the powder storage assembly is changed linearly along the length direction of the powder storage assembly, namely, the gradient combined powder with the proportion continuously changed and distributed is obtained, the uniform transition property of the gradient material is effectively improved, and the metal additive effect is improved.
In a third aspect, the present application further provides an electronic device, comprising a processor and a memory, where the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, perform the steps of the method as provided in the second aspect.
In a fourth aspect, the present application also provides a storage medium having a computer program stored thereon, which, when executed by a processor, performs the steps of the method as provided in the second aspect above.
Therefore, the application provides a continuous gradient material powder spreading system, a method, an electronic device and a storage medium, wherein the continuous gradient material powder spreading system controls a moving assembly to drive a powder feeding assembly to move through a controller, and the powder feeding speed of the corresponding powder feeding assembly is linearly adjusted according to the position of the powder feeding assembly in the moving process of different powder feeding assemblies so as to feed powder to a powder storage assembly, so that the powder amount of different metal powder in the powder storage assembly is linearly changed along the length direction of the powder storage assembly, after the powder storage assembly is filled with the powder, gradient combined powder distributed in a continuously-changed ratio is obtained, the metal powder laid by the powder spreading assembly does not have an obvious transition boundary in the length direction of the powder storage assembly, the uniform transition of a gradient material is effectively improved, and the metal material increasing effect is improved.
Drawings
Fig. 1 is a schematic view of an electric control structure of a continuous gradient material powder laying system provided in an embodiment of the present application.
Fig. 2 is a schematic front view of some preferred embodiments of the continuous gradient material powder-laying system provided in the examples of the present application.
Fig. 3 is a schematic front view of another preferred embodiment of the continuous gradient material powder-laying system according to the embodiment of the present application.
Fig. 4 is a side view schematic structural diagram of some preferred embodiments of a continuous gradient material powder-laying system provided in an example of the present application.
Fig. 5 is a schematic side view of another preferred embodiment of a continuous gradient material dusting system according to an embodiment of the present application.
Fig. 6 is a flowchart of a continuous gradient material powdering method according to an embodiment of the present disclosure.
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 assembly; 2. a powder storage assembly; 3. a powder paving component; 4. a moving assembly; 5. a controller; 6. a distance sensor; 11. a powder falling roller; 12. a connecting gear; 13. connecting the racks; 31. a powder mixing bin; 32. spreading a powder scraper; 301. a processor; 302. a memory; 303. a communication bus.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In a first aspect, please refer to fig. 1 to 5, and fig. 1 to 5 illustrate a continuous gradient material powder laying system for gradient material powder laying in some embodiments of the present application, the system includes a powder feeding assembly 1, a powder storage assembly 2, and a powder laying assembly 3, which are sequentially arranged from top to bottom, where at least two powder feeding assemblies 1 are provided; the system further comprises:
the moving assembly 4 is used for driving the powder feeding assembly 1 to continuously perform horizontal displacement;
the controller 5 is electrically connected with the powder feeding assembly 1, the powder spreading assembly 3 and the moving assembly 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 paving component 3 to mix and pave powder after the powder storage component 2 is full of powder.
Specifically, when the continuous gradient material powder paving system of the embodiment of the present application paves powder, the moving assembly 4 drives the powder feeding assembly 1 to continuously move from above one end of the powder storage assembly 2 to above the other end of the powder storage assembly 2, and the powder feeding assembly 1 continuously feeds powder to the powder storage assembly 2 in the moving process, so that the whole powder storage assembly 2 can receive metal powder along the moving direction of the powder feeding assembly 1.
More specifically, in the moving process 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 in the moving 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, so that the powder feeding assembly 1 changes the output amount of the metal powder in a linearly changing manner during the moving process, and the powder storage assembly 2 has the metal powder with the powder amount (mass) in the moving direction of the powder feeding assembly 1 linearly changing for one metal powder fed by the same powder feeding assembly 1.
More specifically, the continuous gradient material powder laying system in the embodiment of the present application is provided with at least two powder feeding assemblies 1, different powder feeding assemblies 1 are provided with different types of metal powder according to the process requirements, and therefore, after the controller 5 controls all the powder feeding assemblies 1 to feed powder, the powder storage assembly 2 should be understood as receiving a plurality of kinds of powder with the powder feeding amount linearly changing.
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 the 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 component 1 moves from the position above one end of the powder storage component 2 to the position above the other end of the powder storage component 2 under the driving action of the moving component 4 to finish one powder feeding operation, and the powder storage component 2 finishes one or more powder feeding operations by utilizing different powder feeding components 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 matched with the powder storage components 2 with different powder feeding rates to store the powder fully, namely, the continuous gradient material powder paving system at least comprises two powder feeding components 1 with different linear adjusting characteristics, so that under the matching powder feeding effect of the powder feeding components 1, the powder storage components 2 can smoothly store the powder fully, and the powder storage components 2 have metal powder with different proportions along different powder storage positions in the length direction.
More specifically, the controller 5 in the system of the embodiment of the present application may determine whether the powder storage assembly 2 is full of powder by using a visual camera or a retransmission sensor, and may also determine whether the powder storage assembly 2 is full of powder by identifying whether all the powder feeding assemblies 1 complete the powder feeding operations for the corresponding number of times; 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 one powder feeding assembly 1, the feeding rate is linearly changed along the length direction of the powder storage assembly 2, so that the powder amount of the metal powder of the powder feeding assembly 1 received by the powder storage assembly 2 is linearly changed along the length direction thereof, and after the powder storage assembly 2 is filled with the powder, the proportion of the metal powder in the powder storage assembly is linearly changed along the length direction thereof, that is, gradient combined powder with continuously changed and distributed proportion is obtained.
In some preferred embodiments, the present application is directed to achieve continuously variable powder amount delivery by using the controller 5 to regulate and control the powder delivery relationship between the powder feeding assembly 1 and the powder storage assembly 2, and therefore, in the present application, the moving assembly 4 preferably drives the powder feeding assembly 1 to move at a constant speed, so that the controller 5 can precisely control the powder amounts received at different positions on the powder storage assembly 2 by regulating and controlling the powder feeding rate of the powder feeding assembly 1, so as to simplify the process of linearly regulating the powder feeding rate of the powder feeding assembly 1 by the controller 5.
In some other embodiments, the powder feeding assembly 1 may also be a constant speed powder feeding, and the controller 5 adjusts the moving speed of the moving assembly 4 through variable speed to realize linear adjustment of the powder feeding rate of the powder feeding assembly 1 relative to the length direction of the powder storage assembly 2.
In some preferred embodiments, the powder feeding rates of all the powder feeding assemblies 1 corresponding to different horizontal positions of the powder storage assembly 2 are equal to each other.
Specifically, after all the powder feeding assemblies 1 complete one-time powder feeding operation, it is required to ensure that the total amount of the metal powder received by the powder storage assembly 2 at different positions is the same to avoid the problems of powder overflow or local powder paving loss caused by uneven distribution of the material amount of the gradient combined powder, and the like, in the embodiment of the application, in the same position of the powder storage assembly 2, the powder feeding rate of the powder feeding assembly 1 determines the powder amount of the corresponding metal powder received by the powder storage assembly 2 at the position, the sum of the powder feeding rates of all the powder feeding assemblies 1 corresponding to the powder storage assembly 2 at different horizontal positions along the length direction determines the material amount 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 assembly 2 can smoothly and uniformly store the full powder for powder paving.
In some preferred embodiments, as shown in fig. 4, the discharging end of the powder feeding assembly 1 is provided with a powder dropping 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 rotating speed of the powder dropping roller 11.
Specifically, the powder feeding assembly 1 comprises a powder hopper and a powder dropping roller 11 arranged in the powder hopper, the powder dropping roller 11 is driven by a powder dropping motor to rotate, and the controller 5 adjusts the powder feeding speed of the powder feeding assembly 1 by adjusting the rotating speed of the powder dropping motor, so that the amount of metal powder received by different positions on the powder storage assembly 2 is in direct proportion to the rotating speed of the powder dropping roller 11 in the corresponding powder storage assembly 2 in the embodiment of the application; the controller 5 can realize the linear change powder feeding function by controlling the rotating speed of the powder dropping roller 11, and has the characteristics of convenient and accurate adjustment.
More specifically, the sum of the rotating 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 powder for powder paving.
In some preferred embodiments, the controller 5 linearly adjusts the powder feed rate of the powder feed assembly 1 in a continuously increasing or continuously decreasing manner.
Specifically, in the metal additive technology field, the gradient composite material obtained by mixing different metal materials is generally used to form a transition region of the metal materials of different materials, and therefore, for one metal material in the gradient composite material, the powder amount thereof is generally increased or decreased gradually along the length direction of the powder storage assembly 2, and therefore, in the embodiment of the present application, the controller 5 preferably linearly adjusts the powder feeding rate of the powder feeding assembly 1 in a continuously increasing or continuously decreasing manner, so as to meet the general use requirement of the gradient composite material.
In some other embodiments, if there is a special requirement for the variation process of the gradient combined material, the controller 5 may further linearly adjust the powder feeding rate of the powder feeding assembly 1 according to a single curve, a single straight line or a compound line, so as to form a variation combination relationship of different metal material proportions 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 of a linear function, a sinusoidal function, a parabolic curve, a normal distribution function, or any combination linear function.
In some preferred embodiments, the number of the powder feeding assemblies 1 is two, and the two powder feeding assemblies 1 are driven by the moving assembly 4 to move alternately or synchronously in opposite directions or synchronously in the same direction.
Specifically, for the existing metal additive technology, the gradient combination material generally involves two materials and a transition mixed material between the two materials, so that the two powder feeding assemblies 1 can meet the use requirement.
More specifically, the two powder feeding assemblies 1 can feed the powder to the powder storage assembly 2 in a mode of feeding the powder simultaneously or sequentially; when the two powder feeding assemblies 1 feed powder simultaneously, the powder can be moved in a moving mode of synchronous reverse movement or synchronous same-direction movement.
More specifically, when the two powder feeding assemblies 1 move synchronously in the same direction, the sum of the powder feeding rates of the two powder feeding assemblies 1 is a fixed value, that is, the controller 5 controls the powder feeding rates of the two powder feeding assemblies 1 to be complementary, so that the total amount of the metal powder received by the powder storage assembly 2 at different positions is the same; in the embodiment, the controller 5 controls the moving assembly 4 to simultaneously drive the two powder feeding assemblies 1 to move in the same direction at a constant speed, and controls the rotating speeds of the powder dropping rollers 11 of the two powder feeding assemblies 1 according to a preset total rotating speed value, so that the rotating speeds of the two powder dropping rollers 11 are respectively continuously increased and continuously decreased, and the total rotating speed values at different moments are equal, wherein the total rotating speed value is the sum of the rotating speeds of the powder dropping rollers of all the powder feeding assemblies 1 at the same moment, and thus the two powder feeding assemblies 1 feed the continuously and uniformly transitional gradient combined materials towards the powder storage assembly 2; the control mode can monitor and adjust the powder feeding rates of the two powder feeding assemblies 1 in real time, and ensures that equal gradient combined materials exist at each position of the powder storage assembly 2.
More specifically, when the two powder feeding assemblies 1 move in the opposite directions synchronously, the powder feeding rates of the two powder feeding assemblies 1 are the same, that is, the controller 5 controls the two powder feeding assemblies 1 to move reversely from the upper parts of the two ends of the powder storage assembly 2 at a constant speed respectively so that the two powder feeding assemblies 1 perform mirror image motion with the middle part of the powder storage assembly 2, and controls the powder falling rollers 11 of the two powder feeding assemblies 1 to keep the same rotating speed, in order to further ensure that the powder storage assembly 2 has an equal amount of gradient combined materials at each position, in the embodiment, the powder feeding rates of the powder feeding assemblies 1 change at a constant speed, so that the two powder feeding assemblies 1 feed the gradient combined materials which are continuously and evenly transited towards the powder storage assembly 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 mirror symmetry relation.
More specifically, when two powder feeding assemblies 1 are used for feeding powder successively, 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, the two powder feeding assemblies 1 can adopt alternate powder feeding (that is, one powder feeding assembly 1 finishes feeding powder and then starts the other powder feeding assembly 1 for feeding powder) or follow powder feeding (that is, the two powder feeding assemblies 1 move in parallel to feed powder), and the powder feeding assemblies 1 adopt parallel arrangement to enable the metal powder fed out by 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 combined 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 rotation of the screw rod so as to confirm the displacement of the powder storage assembly 2, the powder feeding rate of the powder feeding assembly 1 is adjusted in a direct ratio or an inverse ratio according to the displacement, so that the powder feeding rate can be continuously increased or continuously decreased, and the electric screw rod 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 about the gradient combined material in advance, calibrates the relationship between the abscissa (the position of the powder feeding assembly 1) of the change curve and the rotation amount of the screw rod, and then adjusts the powder feeding rate of the powder feeding assembly 1 in real time according to the rotation amount of the screw rod and the change curve during the movement of the powder feeding assembly 1.
More specifically, in another embodiment, when the moving assembly 4 is an electric screw, and the controller 5 controls the electric screw to drive the powder feeding assembly 1 to move, the controller 5 can calculate and obtain the position of the powder feeding assembly 1 according to the running time of the electric screw, and linearly adjust the powder feeding rate of the corresponding powder feeding assembly 1 according to the position of the powder feeding assembly 1.
In some other embodiments, the system of the embodiment of the present application can further obtain the position of the powder feeding assembly 1 relative to the powder storage assembly 2 through a visual sensor (not shown), a position detector (not shown), 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, the distance sensor 6 is provided on the frame of the additive machine on the side of the powder feeding assembly 1, and the position of the powder feeding assembly 1 is determined by measuring the distance of the powder feeding assembly 1 from the side wall of the frame.
More specifically, in this embodiment, the moving assembly 4 may also be a moving member using an air cylinder, a hydraulic cylinder, a rack and pinion drive 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, the two powder feeding assemblies 1 can be driven to move synchronously and in the same direction by using one electric screw rod.
In some other embodiments, as shown in fig. 5, when the two powder feeding assemblies 1 move in the opposite directions synchronously, the two powder feeding assemblies 1 can also move in the opposite directions synchronously by the cooperation of the connecting gear 12 and the connecting racks 13 respectively engaged with the upper and lower end surfaces of the connecting gear 12, so as to ensure that the two powder feeding assemblies 1 can perform mirror motion.
In some preferred embodiments, the powder storage assembly 2 has a plurality of equidistantly arranged powder storage grids or one continuous powder storage chamber for storing powder.
Specifically, the powder storage grids and the powder storage cavity are used for storing powder, the powder is sent into the powder paving component 3 after the powder storage grids or the powder storage cavity is filled with powder, and the gradient composite material which is uniformly mixed and has the metal powder proportion which is distributed along the length direction of the powder storage component 2 in a changing way is obtained through the powder mixing treatment of the powder paving component 3; the powder storage grid can divide the powder storage component 2 into a plurality of powder storage areas, and the problem that when the powder feeding component 1 feeds powder, excessive powder is accumulated at a certain powder storage position within a certain time and is diffused to an adjacent powder storage position (similar to sand pile effect) to cause uneven transition of metal materials can be avoided.
More specifically, the powder storage assembly 2 conveys the gradient composite material to the powder paving assembly 3, and the powder mixing and paving process of the powder paving assembly 3 can be realized by adopting the existing connecting conveying, powder mixing and powder paving structure, which is not limited and described herein.
In some preferred embodiments, the powder storage assembly 2 is filled with powder after the controller 5 controls the powder feeding assembly 1 to feed powder for a plurality of times.
Specifically, after the two powder feeding assemblies 1 carry out one-time powder feeding operation, the two powder feeding assemblies are regarded as carrying out one-time powder feeding on the powder storage assembly 2, the original one-time powder feeding operation is changed into multi-time powder feeding operation, and the problem that metal materials are unevenly transited due to the fact that excessive powder is accumulated at a certain powder storage position within a time and the excessive powder is diffused to an adjacent powder storage position can be avoided; this powder feeding is particularly suitable for powder storage assemblies 2 having one continuous powder storage chamber.
In some preferred embodiments, the axial line of the powder falling roller 11 is parallel to the longitudinal direction of the powder storage assembly 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 assembly 2.
Specifically, as shown in fig. 4, the powder feeding and dropping 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 mutual influence of powder accumulation sent by the two powder feeding assemblies 1 can be avoided, and the distribution condition of the metal powder amount along the length direction of the powder storage assembly 2 is ensured to meet the expected design.
In some other embodiments, the axial line of the powder falling roller 11 can also 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, be equipped with the powder mixer with controller 5 electric connection in mixing powder storehouse 31, spread powder scraper 32 and be used for strickleing off the powder when controller 5 control shop's powder subassembly 3 removes in order to realize spreading the powder.
In a second aspect, please refer to fig. 6, fig. 6 is a schematic diagram of a continuous gradient material powder laying method for performing gradient material powder laying, the method is applied to a continuous gradient material powder laying system, the continuous gradient material powder laying system includes a powder feeding assembly 1, a powder storage assembly 2 and a powder laying assembly 3, which are sequentially arranged from top to bottom, and at least two powder feeding assemblies 1 are provided; the system further comprises: the moving assembly 4 is used for driving the powder feeding assembly 1 to continuously perform horizontal displacement; the method comprises the following steps:
s1, controlling the moving assembly 4 to drive the powder feeding assembly 1 to move, and linearly adjusting the powder feeding speed 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 to feed the powder storage assembly 2;
and S2, controlling the powder paving component 3 to mix and pave the powder after the powder storage component 2 is full of powder.
According to the continuous gradient material powder paving method, after the powder storage assembly 2 is filled with powder, the proportion of metal powder in the powder storage assembly is changed linearly along the length direction of the powder storage assembly, namely, gradient combined powder with the proportion distributed in a continuously changing manner is obtained, on the basis, powder mixing and paving can be performed to realize gradient powder paving with uniform transition, so that the metal powder paved by the powder paving assembly 3 is not provided with obvious transition boundary in the length direction of the powder storage assembly 2, the uniform transition performance of the gradient material is effectively improved, and the metal additive effect is improved.
In some preferred embodiments, the process of performing step S1 should satisfy: the powder feeding speed sums of all the powder feeding components 1 corresponding to different horizontal positions of the powder storage component 2 are equal.
In some preferred embodiments, the discharging end of the powder feeding assembly 1 is provided with a powder dropping roller 11 for adjusting the powder feeding speed thereof, and the step of linearly adjusting the powder feeding speed of the corresponding powder feeding assembly 1 according to the position of the powder feeding assembly 1 to feed the powder storage assembly 2 comprises the following steps: and the rotating speed of the powder falling roller 11 of the corresponding powder feeding assembly 1 is linearly adjusted 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: the processor 301 and the memory 302, the processor 301 and the memory 302 being interconnected and communicating with each other via 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, the processor 301 executing the computer program when the computing device is running to perform the method of any of the alternative implementations of the embodiments described above.
In a fourth aspect, the present application provides a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the computer program performs the method in any optional implementation manner of the foregoing embodiments. The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk.
To sum up, the embodiment of the present application provides a continuous gradient material powder spreading system, a method, an electronic device, and a storage medium, wherein the continuous gradient material powder spreading system controls the moving component 4 through the controller 5 to drive the powder feeding component 1 to move, and linearly adjusts the powder feeding rate of the corresponding powder feeding component 1 according to the position of the powder feeding component 1 during the moving process of different powder feeding components 1 to feed the powder to the powder storage component 2, so that the powder amount of different metal powder in the powder storage component 2 linearly changes along the length direction thereof, and after the powder storage component 2 stores the powder, gradient combined powder with continuously changing and distributing ratio is obtained, so that the metal powder laid by the powder spreading component 3 has no obvious transition boundary in the length direction of the powder storage component 2, thereby effectively improving the uniform transition of a gradient material, and improving the metal material increase effect.
In the embodiments provided in the present application, it should be understood that the disclosed method can be implemented in other ways
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
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 above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A continuous gradient material powder laying system is used for carrying out gradient material powder laying and comprises a powder feeding assembly (1), a powder storage assembly (2) and a powder laying assembly (3) which are sequentially arranged from top to bottom, and is characterized in that the number of the 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 perform horizontal displacement;
the controller (5) is electrically connected with the powder feeding assembly (1), the powder spreading assembly (3) and the moving assembly (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 paving component (3) to mix and pave powder after the powder storage component (2) is full of powder.
2. The continuous gradient material powder laying system according to claim 1, wherein 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.
3. The continuous gradient material powder laying system as claimed in claim 1, wherein the powder feeding assembly (1) is provided with a powder dropping roller (11) at the discharge end thereof 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 rotating speed of the powder dropping roller (11).
4. The continuous gradient material dusting system of claim 1, characterized in that the controller (5) linearly adjusts the powder feeding rate of the powder feeding assembly (1) for continuous increasing or continuous decreasing.
5. The continuous gradient material powder laying system according to claim 1, wherein the number of the powder feeding assemblies (1) is two, and the two powder feeding assemblies (1) are driven by the moving assembly (4) to move alternately or synchronously in opposite directions or synchronously in the same direction.
6. The continuous gradient material powder laying system of claim 1, wherein the moving assembly (4) is an electric screw, and the controller (5) is used for calculating the position of the powder feeding assembly (1) according to the rotation amount of the electric screw.
7. The continuous gradient material dusting system of claim 1, characterized in that the powder storage assembly (2) is filled with powder after the controller (5) controls the powder feeding assembly (1) to feed powder for a plurality of times.
8. A continuous gradient material powder laying method is used for gradient material powder laying and is applied to a continuous gradient material powder laying system, the continuous gradient material powder laying system comprises a powder feeding component (1), a powder storage component (2) and a powder laying component (3) which are sequentially arranged from top to bottom, and the continuous gradient material powder laying method is characterized in that at least two powder feeding components (1) are arranged; the system further comprises: the moving assembly (4) is used for driving the powder feeding assembly (1) to continuously perform horizontal displacement; 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);
and after the powder storage component (2) is full of powder, controlling the powder paving component (3) to mix and pave powder.
9. An electronic device comprising a processor and a memory, the memory storing computer readable instructions which, when executed by the processor, perform the steps of the method of claim 8.
10. A storage medium having a computer program stored thereon, wherein the computer program when executed by a processor performs the steps of the method of claim 8.
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