CN116061430A - 3D printing system and method for integrally forming three-dimensional antenna - Google Patents
3D printing system and method for integrally forming three-dimensional antenna Download PDFInfo
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- CN116061430A CN116061430A CN202111274334.4A CN202111274334A CN116061430A CN 116061430 A CN116061430 A CN 116061430A CN 202111274334 A CN202111274334 A CN 202111274334A CN 116061430 A CN116061430 A CN 116061430A
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Images
Classifications
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- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
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Abstract
The invention provides a 3D printing system and a method for integrally forming a three-dimensional antenna, wherein the system comprises a placing table, a powder collecting groove, an antenna printer head, an antenna powder feeding groove, a base material printer head and a base material powder feeding groove, the antenna printer head and the base material printer head independently and sequentially work, and a cleaning module cleans the antenna printer head and the base material printer head after each printing is finished. The antenna printer head and the base material printer head independently and sequentially work, so that an antenna structure and a base material structure can be formed simultaneously in the 3D printing process, and further the integral forming manufacturing of the three-dimensional antenna is realized; cleaning is performed after each printing to ensure that no impurity powder remains during printing. In the research and development debugging stage, the input three-dimensional antenna structure can be conveniently and efficiently adjusted to finish the debugging task; meanwhile, 3D printing has higher precision, and product consistency is guaranteed. The problem that the existing three-dimensional antenna integrated forming process is unfavorable for repeated debugging and has poor product consistency is solved.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a 3D printing system and method for integrally forming a three-dimensional antenna.
Background
Along with the development of science and technology, the internet of things becomes a necessity of daily life of people, and correspondingly, the antenna industry is rapidly developed. The existing antenna manufacturing process generally comprises attaching an antenna in the form of an FPC to a substrate surface, laser forming the antenna on the substrate surface by an LDS process, or coating the antenna on the substrate surface by a printing process. At present, common antenna forms are in a two-dimensional structure, and although the antenna forms can be in a three-dimensional structure according to the shape of the surface of a substrate, so that the antenna performance is improved, the antenna formed by the process can only exist on the surface of the substrate and cannot penetrate through the substrate, so that the design of the antenna is limited.
In order to solve the problem, it has been found that the metal antenna structure can be manufactured by using an insert injection molding process, and then the substrate is wrapped outside the antenna by using the injection molding process, thereby realizing the integrated manufacturing of the three-dimensional antenna and the substrate.
However, the antenna tuning process is very precise and complex, and a large number of repeated tuning is usually required to achieve the optimization of the antenna performance; however, due to the characteristics of the injection molding process, in the research and development and trial production stages, the production of the real object can only be carried out by developing a soft mold; the service life of the soft mold is short, and the mold cannot be repeatedly repaired, so that the cost of research, development and debugging is high. In addition, the mold used for injection molding needs to undergo the procedures of design, processing, mold repair and the like, which is time-consuming and unfavorable for the rapid development of new products, and especially, the continuous modification of the mold can be experienced in the process of repeatedly debugging the antenna performance, thereby not only being unfavorable for ensuring the product quality, but also prolonging the research and development period of the product. In addition, the consistency of products produced by the injection molding process depends on the stability of an injection molding machine and on the maintenance and the maintenance of the mold, and the mold can cause slight differences between each maintenance and the maintenance, so that the consistency among product batches is poor.
Disclosure of Invention
The invention aims to provide a 3D printing system and method for integrally forming a three-dimensional antenna, which at least solve the problems that the existing three-dimensional antenna integrally forming process is not beneficial to repeated debugging and the consistency of products is poor.
In order to solve the technical problems, the invention provides a 3D printing system for integrally forming a stereo antenna, which comprises a printing platform module, a powder spreading movement module, a laser printing module and a cleaning module; the printing platform module comprises a six-axis adjustable placing table and a powder collecting groove positioned at the lower part of the placing table; the powder spreading movement module is used for spreading powder on the placing table; the laser printing module comprises an antenna printer head, an antenna powder feeding groove, a base material printer head and a base material powder feeding groove, wherein the antenna powder feeding groove is linked with the antenna printer head to realize 3D printing of an antenna structure, the base material powder feeding groove is linked with the base material printer head to realize 3D printing of the base material structure, and the antenna printer head and the base material printer head independently and sequentially work; the cleaning module is used for cleaning the placing table and the printed product after the antenna printer head and the base material printer head print each time.
Optionally, in the 3D printing system for integrally forming a stereo antenna, the powder collecting tank includes an antenna powder collecting layer and a base material powder collecting layer, where the antenna powder collecting layer is located at a lower part of the placing table when the powder spreading movement module spreads the antenna powder, when the antenna printer head performs 3D printing of the antenna structure, and when the cleaning module cleans the antenna printer head after the antenna printer head finishes printing, so as to store the redundant antenna powder; the base material powder collecting layer is positioned at the lower part of the placing table when the powder spreading movement module spreads the base material powder, the base material printer head performs 3D printing of the base material structure, and the cleaning module performs cleaning after the base material printer head finishes printing, so that redundant base material powder is stored.
Optionally, in the 3D printing system for integrally forming a stereo antenna, when the antenna powder collecting layer is located at the lower part of the placing table, the substrate powder collecting layer is in a closed state; when the base material powder collecting layer is positioned at the lower part of the placing table, the antenna powder collecting layer is in a closed state.
Optionally, in the 3D printing system for integrally forming a stereo antenna, the antenna powder collecting layer is communicated with the antenna powder feeding groove, so that antenna powder in the antenna powder collecting layer is recovered into the antenna powder feeding groove; the base material powder collecting layer is communicated with the base material powder supply groove, so that base material powder in the base material powder collecting layer is recovered into the base material powder supply groove.
Optionally, in the 3D printing system for integrally forming a stereo antenna, the cleaning module includes a cleaning brush and a cleaning chamber; the cleaning brush moves on the placing table and the printed product surface after the antenna printer head and the base material printer head print each time so as to sweep residual powder on the placing table and the printed product surface into the powder collecting groove, and returns to the cleaning chamber after cleaning; the cleaning chamber is used for cleaning the cleaning brush.
Optionally, in the 3D printing system for integrally forming a stereo antenna, the cleaning chamber includes an ion air gun at an upper portion and a negative pressure adsorption fan at a lower portion; the ion air gun is used for blowing off the powder remained in the cleaning brush, and the negative pressure adsorption fan is used for sucking and recycling the blown powder.
Optionally, in the 3D printing system for three-dimensional antenna integrated into one piece, the negative pressure adsorption fan is connected with the antenna powder feed tank and the substrate powder feed tank through an electric control valve, and the electric control valve is used for controlling at the same time that the negative pressure adsorption fan is only connected with the antenna powder feed tank or one of the substrate powder feed tanks, so that blown antenna powder is sucked and recovered to the antenna powder feed tank under the control of the electric control valve, and blown substrate powder is sucked and recovered to the substrate powder feed tank.
Optionally, in the 3D printing system for integrally forming a stereo antenna, the 3D printing system further includes an online monitoring module, where the online monitoring module is configured to monitor a printed product in real time, and monitor cleanliness of the surface of the placing table and the printed product after each cleaning by the cleaning module.
In order to solve the above technical problem, the present invention further provides a 3D printing method for integrally forming a stereo antenna, implemented in the 3D printing system for integrally forming a stereo antenna as described in any one of the above, the 3D printing method comprising:
initializing;
inputting a three-dimensional antenna structure, wherein the three-dimensional antenna structure comprises an antenna structure and a substrate structure;
dividing the three-dimensional antenna structure into n layers with equal thickness from bottom to top, and marking the n layers as r 0 ，r 1 ……r n-1 ；
From r 0 The layer starts and confirms whether there is an antenna structure in the layer: if the antenna structure exists, a mode pair is called to print the layer; if the antenna structure does not exist, calling a second mode to print the layer;
and repeating the printing process until all the n-layer structure is printed.
Optionally, in the 3D printing method for integrally forming a stereo antenna, the printing method of the first mode includes:
antenna powder is paved on a placement table by calling an antenna powder feeding groove and a powder paving movement module, and 3D printing is carried out on an antenna structure by utilizing an antenna printer head;
after the 3D printing of the layer of antenna structure is finished, cleaning the placing table and the printed product by using a cleaning module;
detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard;
a substrate powder feeding groove and a powder spreading movement module are called to spread substrate powder on a placing table, and a substrate printer head is utilized to perform 3D printing on a substrate structure;
after the 3D printing of the substrate structure is finished, cleaning the placing table and the printed product by using a cleaning module;
detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard;
the printing method of the mode II comprises the following steps:
a substrate powder feeding groove and a powder spreading movement module are called to spread substrate powder on a placing table, and a substrate printer head is utilized to perform 3D printing on a substrate structure;
after the 3D printing of the substrate structure is finished, cleaning the placing table and the printed product by using a cleaning module;
and detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard.
The invention provides a 3D printing system and a method for integrally forming a three-dimensional antenna, wherein the system comprises a printing platform module, a powder spreading movement module, a laser printing module and a cleaning module; the printing platform module comprises a six-axis adjustable placing table and a powder collecting groove positioned at the lower part of the placing table; the powder spreading movement module is used for spreading powder on the placing table; the laser printing module comprises an antenna printer head, an antenna powder feeding groove, a base material printer head and a base material powder feeding groove, wherein the antenna powder feeding groove is linked with the antenna printer head to realize 3D printing of an antenna structure, the base material powder feeding groove is linked with the base material printer head to realize 3D printing of the base material structure, and the antenna printer head and the base material printer head independently and sequentially work; the cleaning module is used for cleaning the placing table and the printed product after the antenna printer head and the base material printer head print each time. By arranging the antenna printer head and the base material printer head to independently and sequentially work, an antenna structure and a base material structure can be formed simultaneously in the 3D printing process, and further, the integrated forming manufacturing of the three-dimensional antenna is realized; through cleaning module clean after printing at every turn, guarantee not have impurity powder to remain at every turn when printing, guaranteed 3D printing's precision and effect. In the research and development and debugging stage, the structure change of the 3D printed stereo antenna can be conveniently realized by adjusting the input stereo antenna structure, and the debugging task can be efficiently completed; meanwhile, 3D printing has higher precision, and product consistency is guaranteed. The problem that the existing three-dimensional antenna integrated forming process is unfavorable for repeated debugging and has poor product consistency is solved.
Drawings
Fig. 1 is a schematic structural diagram of a 3D printing system for integrally forming a stereo antenna according to the present embodiment;
fig. 2 is a flowchart of a 3D printing method for integrally forming a stereo antenna according to the present embodiment.
Detailed Description
The 3D printing system and method for integrally forming a stereo antenna according to the present invention are described in further detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description of the invention and the claims and the accompanying drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
The embodiment provides a 3D printing system for integral forming of a stereo antenna, as shown in fig. 1, the 3D printing system comprises a printing platform module, a powder spreading movement module, a laser printing module and a cleaning module.
Specifically, the printing platform module comprises a six-axis adjustable placing table and a powder collecting groove positioned at the lower part of the placing table; the powder spreading movement module is used for spreading powder on the placing table; the laser printing module comprises an antenna printer head, an antenna powder feeding groove, a base material printer head and a base material powder feeding groove, wherein the antenna powder feeding groove is linked with the antenna printer head to realize 3D printing of an antenna structure, the base material powder feeding groove is linked with the base material printer head to realize 3D printing of the base material structure, and the antenna printer head and the base material printer head independently and sequentially work; the cleaning module is used for cleaning the placing table and the printed product after the antenna printer head and the base material printer head print each time.
According to the 3D printing system for integrally forming the three-dimensional antenna, the antenna printer head and the base material printer head are arranged to independently and sequentially work, so that an antenna structure and a base material structure can be formed simultaneously in the 3D printing process, and further the integrally forming and manufacturing of the three-dimensional antenna are realized; through cleaning module clean after printing at every turn, guarantee not have impurity powder to remain at every turn when printing, guaranteed 3D printing's precision and effect. In the research and development and debugging stage, the structure change of the 3D printed stereo antenna can be conveniently realized by adjusting the input stereo antenna structure, and the debugging task can be efficiently completed; meanwhile, 3D printing has higher precision, and product consistency is guaranteed. The problem that the existing three-dimensional antenna integrated forming process is unfavorable for repeated debugging and has poor product consistency is solved.
It should be noted that the specific structure of the 3D printing system is not provided in the present invention, but it should be understood by those skilled in the art that, to implement the 3D printing function, the position and the relative movement control manner between the modules may be determined according to the functional limitations thereof, for example, the antenna printer head and the substrate printer head in the laser printing module should be at least movable in the X/Y plane to implement the 3D printing of the powder layer; and, the antenna printer head and the base material printer head should also be well known to those skilled in the art, the antenna printer head is selected as a head suitable for printing with metal material, and the base material printer head is a head suitable for printing with plastic material, and in this embodiment, the antenna printer head and the base material printer head need to be capable of powder sintering printing, such as SLM printing.
Further, in this embodiment, the powder collecting tank includes an antenna powder collecting layer and a base material powder collecting layer, where the antenna powder collecting layer is located at a lower portion of the placing table when the powder spreading movement module spreads the antenna powder, when the antenna printer head performs 3D printing of the antenna structure, and when the cleaning module cleans after the antenna printer head finishes printing, so as to store the excessive antenna powder; the base material powder collecting layer is positioned at the lower part of the placing table when the powder spreading movement module spreads the base material powder, the base material printer head performs 3D printing of the base material structure, and the cleaning module performs cleaning after the base material printer head finishes printing, so that redundant base material powder is stored.
Specifically, the antenna powder collecting layer and the substrate powder collecting layer can be two containing grooves which are horizontally placed, and whether the antenna powder collecting layer and the substrate powder collecting layer are positioned at the lower part of the placing table or not is realized through horizontal movement of the sliding rail; or the upper layer and the lower layer can be alternated in a hierarchical arrangement mode to realize that the upper part of the upper layer is a placing table.
It should be noted that the specific structures and implementation manners of the antenna powder collecting layer and the substrate powder collecting layer may be various, and the above two ways are merely illustrative of the realizability thereof, which should not limit the protection scope of the present invention. Other antenna powder collecting layers and substrate powder collecting layers structural designs without departing from the spirit of the invention are also within the scope of the invention.
Preferably, in this embodiment, when the antenna powder collecting layer is located at the lower part of the placement table, the substrate powder collecting layer is in a closed state; when the base material powder collecting layer is positioned at the lower part of the placing table, the antenna powder collecting layer is in a closed state. So, can make antenna powder receive powder layer and substrate powder receive the powder layer when carrying out the powder and accomodate, its powder can not get into other receipts powder in situ to guarantee the purity degree of the powder of accomodating, and then can receive the powder that the powder groove accomodated and carry out recycle, improved the rate of utilization of material.
Specifically, the antenna powder collecting layer is communicated with the antenna powder feeding groove, so that antenna powder in the antenna powder collecting layer is recovered into the antenna powder feeding groove; the base material powder collecting layer is communicated with the base material powder supply groove, so that base material powder in the base material powder collecting layer is recovered into the base material powder supply groove.
In this embodiment, the cleaning module includes a cleaning brush and a cleaning chamber; the cleaning brush moves on the placing table and the printed product surface after the antenna printer head and the base material printer head print each time so as to sweep residual powder on the placing table and the printed product surface into the powder collecting groove, and returns to the cleaning chamber after cleaning; the cleaning chamber is used for cleaning the cleaning brush.
Specifically, the bristles of the cleaning brush are ultrafine fiber bristles so as to clean the residual powder on the surface of the product. Preferably, during the cleaning process, the placing table can be slightly inclined so as to pour the powder which cannot be brushed out by the cleaning brush into the powder collecting groove.
Further, in the embodiment, the cleaning chamber comprises an ion air gun positioned at the upper part and a negative pressure adsorption fan positioned at the lower part; the ion air gun is used for blowing off the powder remained in the cleaning brush, and the negative pressure adsorption fan is used for sucking and recycling the blown powder. Specifically, the cleaning chamber is a sealed space, and can be located on the side wall of the whole 3D printing system, and the cleaning brush can extend into the cleaning chamber so as to clean the cleaning brush. The ion air gun is arranged on the upper part, the negative pressure adsorption fan is arranged on the lower part, and all powder can be sucked into the negative pressure adsorption fan by utilizing the gravity action of the powder, so that the cleaning brush is ensured to be clean before the next cleaning operation.
Preferably, the cleaning chamber is provided with a sensing device, and when the cleaning brush is sensed to enter the cleaning chamber, a cleaning function is started, so that energy sources can be saved, powder escape caused by early opening can be prevented, and a cleaning effect is ensured.
Still further, in this embodiment, the negative pressure adsorption blower is in communication with the antenna powder supply tank and the base material powder supply tank through an electric control valve, and the electric control valve is used for controlling the negative pressure adsorption blower to be in communication with only one of the antenna powder supply tank or the base material powder supply tank at the same time, so that blown antenna powder is sucked and recovered to the antenna powder supply tank under the control of the electric control valve, and blown base material powder is sucked and recovered to the base material powder supply tank.
Since only one powder remains on each cleaning brush, the dust adsorbed by each cleaning can be recovered according to the category, thereby improving the material utilization rate. Specifically, antenna powder can be collected and guided into an antenna powder feed groove through a central control device in the cleaning process after the antenna printer head finishes printing; and collecting and guiding the base material powder into a base material powder feeding groove in the cleaning process after the printing of the base material printer head is finished.
Furthermore, in the present embodiment, the 3D printing system may also have other devices and modules, such as a gas generation module, for providing a shielding gas; and the online monitoring module is used for monitoring the printed product in real time and monitoring the cleanliness of the surface of the placing table and the printed product after each cleaning of the cleaning module.
It should be noted that, the devices and modules of the 3D printing system provided by the present invention are not limited to the above, and other modules of the devices may be added to implement the 3D printing system, which is well known to those skilled in the art. A 3D printing system to which other devices and modules are added without departing from the spirit of the present invention should also fall within the scope of the present invention.
The embodiment also provides a 3D printing method for integrally forming a stereo antenna, as shown in fig. 2, where the 3D printing method includes:
initializing;
inputting a three-dimensional antenna structure, wherein the three-dimensional antenna structure comprises an antenna structure and a substrate structure;
dividing the three-dimensional antenna structure into n layers with equal thickness from bottom to top, and marking the n layers as r 0 ，r 1 ……r n-1 ；
From r 0 The layer starts and confirms whether there is an antenna structure in the layer: if the antenna structure exists, a mode pair is called to print the layer; if the antenna structure does not exist, calling a second mode to print the layer;
and repeating the printing process until all the n-layer structure is printed.
Specifically, the printing method of the mode one includes:
antenna powder is paved on a placement table by calling an antenna powder feeding groove and a powder paving movement module, and 3D printing is carried out on an antenna structure by utilizing an antenna printer head;
after the 3D printing of the layer of antenna structure is finished, cleaning the placing table and the printed product by using a cleaning module;
detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard;
a substrate powder feeding groove and a powder spreading movement module are called to spread substrate powder on a placing table, and a substrate printer head is utilized to perform 3D printing on a substrate structure;
after the 3D printing of the substrate structure is finished, cleaning the placing table and the printed product by using a cleaning module;
and detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard.
And, the printing method of the mode two comprises the following steps:
a substrate powder feeding groove and a powder spreading movement module are called to spread substrate powder on a placing table, and a substrate printer head is utilized to perform 3D printing on a substrate structure;
after the 3D printing of the substrate structure is finished, cleaning the placing table and the printed product by using a cleaning module;
and detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard.
In this embodiment, considering that the melting point of the metal powder is higher than that of the base material, the antenna structure of the metal material is printed first, so as to ensure stability and manufacturing accuracy of the 3D printing process and prevent the plastic layer from melting, burning, deforming and other defects in the metal printing process.
The alarm mode can be buzzing or lighting, and can also be accompanied with shutdown action so as to ensure the 3D printing effect.
In the following, a specific 3D printing process is taken as an example, and the 3D printing system and method for integrally forming a stereo antenna provided by the invention are described.
In this example, the antenna powder selected was copper powder and the base powder was PEEK powder.
Firstly, initializing a 3D printing system, and pouring corresponding powder into a feed groove of a corresponding machine head (pouring copper powder into an antenna powder feed groove corresponding to an antenna printer head, and pouring PEEK powder into a base material powder feed groove corresponding to a base material printer head).
Then, a three-dimensional antenna structure including an antenna structure and a substrate structure is input.
Then, the 3D printing system automatically divides the three-dimensional antenna structure into n layers according to the input three-dimensional antenna structure, and the thickness of each layer is 2 μm.
Then, from the lowest layer, confirming whether the antenna structure exists in the layer, and if so, printing the antenna structure, wherein the method specifically comprises the following steps: firstly, an antenna powder collecting layer is adjusted to be below a placing table, then a preset amount of copper powder is poured into the placing table from an antenna powder feeding groove, and in the embodiment, the preset amount of copper powder is required to enable the thickness of a powder paving layer formed by a powder paving module after powder paving is completed to be 2 mu m; then the antenna printer head performs 3D printing of the antenna structure according to the image layer; after printing, the cleaning brush cleans the surface of the placing table and the product, specifically, the cleaning brush can be a back-and-forth X direction and a back-and-forth Y direction, and the cleaning brush can reciprocate along with vibration in the Y direction in the back-and-forth X direction and reciprocate along with vibration in the X direction in the back-and-forth Y direction so as to clean residual powder; after cleaning is completed, the cleaning brush enters a cleaning room for cleaning; and finally, recovering the copper powder stored in the antenna powder collecting layer and the copper powder recovered by the negative pressure adsorption fan into an antenna powder feeding groove.
After the antenna structure is printed, whether the substrate structure exists or not is confirmed. Typically, there will be a substrate structure in each layer, and thus, a 3D print job is performed on the substrate structure. The process is similar to the printing process of the antenna structure, and comprises the following steps: firstly, a substrate powder collecting layer is adjusted to be below a placing table, then a substrate powder feeding groove is used for pouring a preset amount of PEEK powder on the placing table, and in the embodiment, the PEEK powder with the preset amount needs to enable the thickness of a powder paving layer formed by a powder paving module after powder paving is completed to be 2 mu m; then the substrate printer head performs 3D printing of the substrate structure according to the pattern layer; after printing, the cleaning brush cleans the surface of the placing table and the product, specifically, the cleaning brush can be a back-and-forth X direction and a back-and-forth Y direction, and the cleaning brush can reciprocate along with vibration in the Y direction in the back-and-forth X direction and reciprocate along with vibration in the X direction in the back-and-forth Y direction so as to clean residual powder; after cleaning is completed, the cleaning brush enters a cleaning room for cleaning; and finally, recovering the PEEK powder received by the substrate powder receiving layer into the substrate powder feeding groove by the PEEK powder recovered by the negative pressure adsorption fan.
If the layer has no antenna structure, the printing of the substrate layer is directly performed, and the mode is consistent with the mode and is not repeated here.
After the printing of the current layer is finished, the system automatically detects the printed product, and after the detection result is OK, automatically switches to the layer of the previous layer, and prints according to the mode until the printing of all the layers is finished, so that the 3D printing process of the three-dimensional antenna is finished; if the detection result is NG, the machine is stopped in an alarm mode, and engineering personnel are required to confirm the detection result. Specifically, the detected items include size, appearance, and the like.
The three-dimensional antenna manufactured in the mode not only can efficiently and quickly realize the manufacture of drawings to products, but also can conveniently adjust and optimize the products; in addition, the mode can realize the integral molding of the antenna structure and the substrate structure, so that two materials are tightly combined; and the hierarchical manufacturing mode can planarize the three-dimensional antenna structure, is suitable for manufacturing various three-dimensional antenna structures, and is especially suitable for integrally forming and manufacturing the three-dimensional antenna with a complex structure.
In summary, the 3D printing system and method for integrally forming a stereo antenna provided in this embodiment include a printing platform module, a powder spreading movement module, a laser printing module and a cleaning module; the printing platform module comprises a six-axis adjustable placing table and a powder collecting groove positioned at the lower part of the placing table; the powder spreading movement module is used for spreading powder on the placing table; the laser printing module comprises an antenna printer head, an antenna powder feeding groove, a base material printer head and a base material powder feeding groove, wherein the antenna powder feeding groove is linked with the antenna printer head to realize 3D printing of an antenna structure, the base material powder feeding groove is linked with the base material printer head to realize 3D printing of the base material structure, and the antenna printer head and the base material printer head independently and sequentially work; the cleaning module is used for cleaning the placing table and the printed product after the antenna printer head and the base material printer head print each time. By arranging the antenna printer head and the base material printer head to independently and sequentially work, an antenna structure and a base material structure can be formed simultaneously in the 3D printing process, and further, the integrated forming manufacturing of the three-dimensional antenna is realized; through cleaning module clean after printing at every turn, guarantee not have impurity powder to remain at every turn when printing, guaranteed 3D printing's precision and effect. In the research and development and debugging stage, the structure change of the 3D printed stereo antenna can be conveniently realized by adjusting the input stereo antenna structure, and the debugging task can be efficiently completed; meanwhile, 3D printing has higher precision, and product consistency is guaranteed. The problem that the existing three-dimensional antenna integrated forming process is unfavorable for repeated debugging and has poor product consistency is solved.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (10)
1. The 3D printing system for integrally forming the three-dimensional antenna is characterized by comprising a printing platform module, a powder spreading movement module, a laser printing module and a cleaning module;
the printing platform module comprises a six-axis adjustable placing table and a powder collecting groove positioned at the lower part of the placing table; the powder spreading movement module is used for spreading powder on the placing table; the laser printing module comprises an antenna printer head, an antenna powder feeding groove, a base material printer head and a base material powder feeding groove, wherein the antenna powder feeding groove is linked with the antenna printer head to realize 3D printing of an antenna structure, the base material powder feeding groove is linked with the base material printer head to realize 3D printing of the base material structure, and the antenna printer head and the base material printer head independently and sequentially work; the cleaning module is used for cleaning the placing table and the printed product after the antenna printer head and the base material printer head print each time.
2. The 3D printing system for integral molding of a stereo antenna according to claim 1, wherein the powder collecting tank includes an antenna powder collecting layer and a base material powder collecting layer, the antenna powder collecting layer being located at a lower portion of the placement table to collect excessive antenna powder when the powder spreading movement module spreads antenna powder, when the antenna printer head performs 3D printing of an antenna structure, and when the cleaning module cleans after the antenna printer head has finished printing; the base material powder collecting layer is positioned at the lower part of the placing table when the powder spreading movement module spreads the base material powder, the base material printer head performs 3D printing of the base material structure, and the cleaning module performs cleaning after the base material printer head finishes printing, so that redundant base material powder is stored.
3. The 3D printing system for integral formation of a stereo antenna according to claim 2, wherein the base material powder collecting layer is in a closed state when the antenna powder collecting layer is located at a lower portion of the placement table; when the base material powder collecting layer is positioned at the lower part of the placing table, the antenna powder collecting layer is in a closed state.
4. The 3D printing system for integral molding of a stereoscopic antenna of claim 2, wherein the antenna powder receiving layer is in communication with the antenna powder supply tank to recycle antenna powder in the antenna powder receiving layer into the antenna powder supply tank; the base material powder collecting layer is communicated with the base material powder supply groove, so that base material powder in the base material powder collecting layer is recovered into the base material powder supply groove.
5. The 3D printing system for integral formation of a stereoscopic antenna of claim 1, wherein the cleaning module comprises a cleaning brush and a cleaning chamber; the cleaning brush moves on the placing table and the printed product surface after the antenna printer head and the base material printer head print each time so as to sweep residual powder on the placing table and the printed product surface into the powder collecting groove, and returns to the cleaning chamber after cleaning; the cleaning chamber is used for cleaning the cleaning brush.
6. The 3D printing system for integral formation of a stereo antenna of claim 5, wherein the cleaning chamber comprises an ion air gun at an upper portion and a negative pressure suction fan at a lower portion; the ion air gun is used for blowing off the powder remained in the cleaning brush, and the negative pressure adsorption fan is used for sucking and recycling the blown powder.
7. The 3D printing system for integral formation of a three-dimensional antenna according to claim 6, wherein the negative pressure adsorption fan is communicated with the antenna powder supply tank and the base material powder supply tank through an electric control valve, and the electric control valve is used for controlling the negative pressure adsorption fan to be communicated with only one of the antenna powder supply tank or the base material powder supply tank at the same time so as to suck and recycle blown antenna powder to the antenna powder supply tank and suck and recycle blown base material powder to the base material powder supply tank under the control of the electric control valve.
8. The 3D printing system for integral formation of a stereo antenna of claim 1, further comprising an on-line monitoring module for monitoring the printed product in real time and monitoring the cleanliness of the surface of the placement table and the printed product after each cleaning by the cleaning module.
9. A 3D printing method for integral formation of a stereo antenna, implemented in the 3D printing system for integral formation of a stereo antenna according to any one of claims 1 to 8, wherein the 3D printing method comprises:
initializing;
inputting a three-dimensional antenna structure, wherein the three-dimensional antenna structure comprises an antenna structure and a substrate structure;
dividing the three-dimensional antenna structure into n layers with equal thickness from bottom to top, and marking the n layers as r 0 ，r 1 ……r n-1 ；
From r 0 The layer starts and confirms whether there is an antenna structure in the layer: if the antenna structure exists, a mode pair is called to print the layer; if the antenna structure does not exist, calling a second mode to print the layer;
and repeating the printing process until all the n-layer structure is printed.
10. The method for integrally forming a 3D printing of a three-dimensional antenna according to claim 9,
the printing method of the mode one comprises the following steps:
antenna powder is paved on a placement table by calling an antenna powder feeding groove and a powder paving movement module, and 3D printing is carried out on an antenna structure by utilizing an antenna printer head;
after the 3D printing of the layer of antenna structure is finished, cleaning the placing table and the printed product by using a cleaning module;
detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard;
a substrate powder feeding groove and a powder spreading movement module are called to spread substrate powder on a placing table, and a substrate printer head is utilized to perform 3D printing on a substrate structure;
after the 3D printing of the substrate structure is finished, cleaning the placing table and the printed product by using a cleaning module;
detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard;
the printing method of the mode II comprises the following steps:
a substrate powder feeding groove and a powder spreading movement module are called to spread substrate powder on a placing table, and a substrate printer head is utilized to perform 3D printing on a substrate structure;
after the 3D printing of the substrate structure is finished, cleaning the placing table and the printed product by using a cleaning module;
and detecting whether the quality of the printed product meets the standard, detecting whether the cleanliness of the surface of the placing table and the printed product meets the standard, and alarming if the cleanliness does not meet the standard.
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