Fully automated printing system and method based on additive manufacturing

Abstract

The application provides a full-automatic printing system and method based on additive manufacturing, and belongs to the technical field of additive manufacturing.The application forms a transfer channel between a transfer system and a transfer system by arranging the transfer system and the transfer system on the basis of a forming system, the transfer system provides components required by pretreatment work to the transfer system through the transfer channel, the transfer system receives the components removed by the transfer system through the transfer channel, the automation transfer of a new doctor blade holder, a base material, a part and / or an old doctor blade holder is realized, the automation operation of the pretreatment work is realized, and meanwhile, a cleaning assembly is arranged in the transfer warehouse, the forming system is cleaned through the cleaning assembly, and the technical problem that the existing manual cleaning causes harm to personal health is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of additive manufacturing technology, and relates to unmanned full-automatic printing technology, in particular to a full-automatic printing system and method based on additive manufacturing. BACKGROUND

[0002] Additive manufacturing is a technology for manufacturing solid parts by gradually accumulating materials based on the principle of discrete accumulation. From the early rapid prototyping technology to the current wide application, additive manufacturing technology has been applied in the fields of jewelry design, footwear design and manufacturing, industrial design, architectural design, engineering design and construction, automobile design and manufacturing, and other design and manufacturing fields, as well as the fields of aerospace and dentistry. Therefore, the processing of parts by additive manufacturing has gradually become a trend. It can not only be used for 3D printing of small parts in batches, but also can be used to replace the original subtractive and casting processing methods for 3D printing of parts.

[0003] At present, the printing method of the additive manufacturing equipment needs a lot of pretreatment work, including scraper replacement, substrate replacement, galvanometer maintenance and gas washing preparation work. Each time the additive manufacturing equipment is printed, pretreatment work needs to be performed, and the gas washing time accounts for most of the pretreatment time. In addition, after the part is printed, the forming chamber and the powder in the forming chamber need to be cleaned, and after the cleaning is completed, the part needs to be removed and a new substrate is replaced. This process is basically completed by manual intervention. On the one hand, manual processing is time-consuming and affects the printing efficiency. On the other hand, the cleaning of the forming chamber and the powder in the forming chamber is harmful to human health. SUMMARY

[0004] In view of the above background technology, the pretreatment work of additive manufacturing in the prior art is basically completed by manual intervention, which has the technical problems of low printing efficiency and great harm to human health in the powder cleaning process. In view of this technical problem, the present application provides a full-automatic printing system and method based on additive manufacturing.

[0005] The present application forms a transfer channel between the transfer system and the transfer system by setting the transfer system and the transfer system. The transfer system provides the components required for pretreatment work to the transfer system through the transfer channel. The transfer system receives the components removed by the transfer system through the transfer channel, realizes the automatic transfer of new scraper holder, substrate, part and old scraper holder, replaces the existing manual pretreatment work, and improves the printing efficiency of the part. At the same time, the cleaning assembly is arranged in the transfer warehouse, and the forming system is cleaned by the cleaning assembly, which avoids the harm to human health caused by the existing manual cleaning. The present application solves the technical problems of low printing efficiency and great harm to human health in the powder cleaning process in the prior art.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] The full-automatic printing system based on additive manufacturing comprises a forming system, a transfer system and a transfer system.

[0008] A transfer channel is formed between the transfer system and the transfer system, and the transfer system provides the components required for the pre-treatment work to the transfer system through the transfer channel, and the transfer system receives the components removed from the transfer system through the transfer channel; the components required for the pre-treatment work include new scraper holder and / or base material; the components removed from the transfer system include parts and / or old scraper holder;

[0009] The transfer system comprises a transfer warehouse, a first driving assembly for moving the transfer warehouse, a cleaning assembly and a clamp assembly arranged in the transfer warehouse, and a transfer channel is formed between the transfer warehouse and the transfer system; the forming system is provided with a forming position and a transfer position, and the first driving assembly drives the cleaning assembly and the clamp assembly to translate between the forming position and the transfer position through the transfer warehouse;

[0010] The clamp assembly is used for clamping the components required for the pre-treatment work and the components removed from the transfer system, and under the driving of the transfer warehouse, the components required for the pre-treatment work are transferred from the transfer system to the transfer position, and then from the transfer position to the forming position, and the components removed from the transfer system are transferred from the forming position to the transfer position, and then from the transfer position to the transfer system;

[0011] The cleaning assembly is used for moving to the forming position to clean the forming system under the driving of the transfer warehouse;

[0012] The forming system is used for printing parts in the forming position.

[0013] Further limited, the transfer system further comprises a bottom telescopic cover arranged at the bottom of the transfer warehouse, and the bottom telescopic cover is used for sealing between the transfer warehouse and the forming system.

[0014] Further limited, the transfer system further comprises a forming chamber sealing door arranged on one side of the transfer channel.

[0015] Further limited, the cleaning assembly comprises a part blowing cleaning assembly, a powder collecting pipeline and a blowing gas source pipe, the blowing gas source pipe communicates with the part blowing cleaning assembly, the interface of the part blowing cleaning assembly and the interface of the powder collecting pipeline are arranged in the transfer warehouse, and the part blowing cleaning assembly and the powder collecting pipeline translate between the forming position and the transfer position under the driving of the transfer warehouse.

[0016] Further limited, the transfer system further comprises a top telescopic cover arranged at the top of the transfer warehouse, and when the transfer warehouse is located in the forming position, the top telescopic cover is used for protecting the galvanometer assembly arranged at the top of the forming system.

[0017] Further, the top telescopic cover is connected with a lens blowing air inlet pipe and a lens blowing air outlet pipe, the lens blowing air inlet pipe and the lens blowing air outlet pipe are communicated, and the lens blowing air inlet pipe and the lens blowing air outlet pipe blow and clean the galvanometer assembly when the transfer chamber is located at the forming position.

[0018] Further, the clamp assembly comprises a first clamp, a second clamp and a second driving assembly for driving the first clamp and the second clamp to act;

[0019] The first clamp and the second clamp are matched to clamp the components required for the pre-treatment work and the components removed by the transfer system.

[0020] Further, the transfer system comprises a transfer trolley and a transfer trolley Z-direction moving element installed on the transfer trolley, the transfer trolley Z-direction moving element is used to lift the components required for the pre-treatment work or to lower the components removed by the transfer system.

[0021] Further, the transfer system further comprises a transfer trolley sealing chamber installed above the transfer trolley, the transfer trolley Z-direction moving element is arranged in the transfer trolley sealing chamber, and the transfer trolley sealing chamber is used to accommodate the components required for the pre-treatment work or the components removed by the transfer system; a transfer trolley sealing door is arranged on the side of the transfer trolley sealing chamber facing the transfer channel.

[0022] Further, the forming system comprises a screw locking assembly located at the forming position, the screw locking assembly is used to dismount and mount the doctor blade holder; the clamp assembly is further used to clamp the old doctor blade holder and the new doctor blade holder, under the driving of the transfer chamber, the new doctor blade holder is transferred from the transfer system to the transfer position, and then is transferred from the transfer position to the doctor blade mounting position of the forming position, the doctor blade holder is replaced through the screw locking assembly, and the replaced old doctor blade holder is transferred from the forming position to the transfer position under the driving of the transfer chamber, and then is transferred from the transfer position to the transfer system.

[0023] Further, the forming system further comprises a forming platform and a rotary downward pulling assembly connected with the forming platform, the forming platform is used to place the substrate assembly; the rotary downward pulling assembly is connected with the substrate assembly and is used to fasten the substrate assembly.

[0024] The substrate assembly is formed by a plurality of substrate stacks, and a positioning element is arranged between adjacent two substrates; the positioning element is used for positioning when the substrate stacks.

[0025] The present application is based on an automatic printing method of additive manufacturing, comprising the following steps:

[0026] An automatic printing system based on additive manufacturing is installed;

[0027] Before the part is printed, the transfer system transfers the substrate to the transfer channel, the transfer channel is opened, the clamp assembly clamps and moves the substrate into the transfer warehouse, the transfer channel is closed, the clamp assembly clamps the substrate and is driven by the transfer warehouse to transfer the substrate from the transfer system to the transfer position, and then to the forming position, and the substrate is stacked on the forming platform to form a substrate kit;

[0028] After the part is printed, the clamp assembly and the cleaning assembly are driven by the transfer warehouse to transfer from the transfer position to the forming position, the cleaning assembly blows and cleans the forming system, while the clamp assembly clamps the part and is driven by the transfer warehouse to transfer from the forming position to the transfer position, the transfer channel is opened, the clamp assembly transfers the part to the transfer system, the transfer channel is closed, and the transfer system removes the part;

[0029] The transfer system moves the new doctor blade holder to the transfer channel, the transfer channel is opened, the clamp assembly clamps and moves the new doctor blade holder into the transfer warehouse, the transfer channel is closed, the clamp assembly clamps the new doctor blade holder and is driven by the transfer warehouse to transfer the new doctor blade holder from the transfer position to the doctor blade holder mounting position of the forming position, and the replacement of the doctor blade holder is completed in the forming system; the clamp assembly clamps the replaced old doctor blade holder and is driven by the transfer warehouse to transfer the old doctor blade holder from the forming position to the transfer position, and then to the transfer system, the transfer channel is closed, and the transfer system removes the old doctor blade holder.

[0030] Compared with the prior art, the beneficial effects of the present application are:

[0031] 1. The full-automatic printing system based on additive manufacturing of the present application provides the parts required for the pretreatment work through the transfer channel to the transfer system, receives the parts removed by the transfer system through the transfer channel, realizes the automatic transfer of the new doctor blade holder, the substrate, the part and / or the old doctor blade holder, replaces the existing manual pretreatment work, improves the printing efficiency of the part, and sets the cleaning assembly in the transfer warehouse to clean the forming system, avoiding the harm to the personal health caused by the existing manual cleaning. The present application realizes the automatic pretreatment work in the additive manufacturing process, and solves the technical problems of low printing efficiency and great harm to personal health in the powder cleaning process in the prior art.

[0032] 2. In the present application, the top telescopic protective cover is arranged at the top of the transfer warehouse, and the bottom telescopic protective cover is arranged at the bottom of the transfer warehouse, so as to realize the sealing between the transfer warehouse and the forming system, ensure the sealing condition of the forming system, complete each pretreatment work under the sealing condition, and reduce the gas washing time.

[0033] 3、The cleaning assembly includes a lens blowing inlet pipe, a lens blowing outlet pipe, a part blowing cleaning assembly, a powder collecting pipeline, and a blowing gas source pipe, the blowing gas source pipe is used for providing the part blowing cleaning assembly with a blowing gas source; the part blowing cleaning assembly is used for cleaning the parts in the forming chamber; the powder collecting pipeline is used for recycling the powder cleaned in the forming chamber; the lens blowing inlet pipe is used for cleaning the galvanometer lens; and the lens blowing outlet pipe is used for recycling the powder material cleaned on the lens; so that the automatic cleaning of the parts and the lens in the forming system is realized, the cleaning and the powder recycling can be performed in the case that the forming chamber is sealed, the parts are preliminarily or completely cleaned, and the secondary powder cleaning strength is reduced or the secondary cleaning is avoided.

[0034] 4、The forming system includes a scraper holder replacement assembly, the scraper holder replacement assembly includes a screw locking assembly, the scraper holder is disassembled and installed through the screw locking assembly, so that the scraper holder is quickly and automatically replaced.

[0035] 5、The clamp assembly clamps the base material, under the driving of the transfer warehouse, to transfer the base material to above the forming platform of the forming position to form a base material kit, a plurality of base materials can be transferred at a time, the transfer frequency of the base material is reduced, and the transfer efficiency of the base material is improved.

[0036] 6、The transfer of the parts, the base material, and the scraper holder can be completed by using the same transfer system and the transfer system, the utilization rate of the transfer system and the transfer system is greatly improved, and the idle rate is reduced.

[0037] 7、The full-automatic printing system based on additive manufacturing has high integration degree, and realizes unmanned full-automatic printing of the parts by cooperating with the existing powder conveying technology. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic view of the full-automatic printing system based on additive manufacturing;

[0039] Figure 2 is a side view of the forming system;

[0040] Figure 3 is a principle diagram of the scraper holder quick replacement;

[0041] Figure 4 is a schematic view of the clamp assembly;

[0042] Figure 5 is a principle diagram of the transfer trolley scraper replacement;

[0043] 1-base, 2-forming chamber Z direction moving part, 3-forming chamber, 4-first rotary down-draw assembly, 5-sealing plate, 6-piston rod sealing part, 7-base material positioning pin, 8-base material set, 9-powder in forming chamber, 10-wind field air outlet, 11-forming chamber sealing plate, 12-vibrating mirror assembly, 13-vibrating mirror lens, 14-pieces, 15-scraper, 16-second rotary down-draw assembly, 17-powder collecting pipeline, 18-injection air source pipeline, 19-lens injection air inlet pipeline, 20-top telescopic protective cover, 21-transferring warehouse, 22-pieces injection cleaning assembly, 23-first clamp, 24-second clamp, 25-bottom telescopic protective cover, 26-wind field air return, 27-forming chamber sealing door, 28-transferring trolley sealing door, 29-transferring trolley sealing warehouse, 30-transferring trolley Z direction moving part, 31-transferring trolley, 32-left powder collecting box, 33-scraper holder, 34-scraper, 35-scraper holder fastening screw, 36-screw locking assembly, 37-falling powder barrel, 38-front window sealing door, 39-right powder collecting box, 40-scraper holder to be replaced, 41-pin, 42-scraper holder to be replaced fastening screw, 43-linear sliding assembly, 44-transferring trolley platform, 45-old scraper holder, 46-new scraper holder. DETAILED DESCRIPTION

[0044] The technical solutions of the present application will be further explained in conjunction with the accompanying drawings and embodiments, but the present application is not limited to the following described embodiments.

[0045] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that the terms "comprise" and / or "include" indicate the presence of a feature, step, operation, device, component and / or combination thereof in the specification.

[0046] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0047] In addition, it should be noted that the use of the terms "first", "second" and the like to define parts only facilitates the differentiation of the corresponding parts, and unless otherwise stated, the above terms have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0048] The application provides a full-automatic printing system based on additive manufacturing, which comprises a forming system, a transfer system and a transfer system; a transfer channel is formed between the transfer system and the transfer system, the transfer system provides components required for pre-processing work to the transfer system through the transfer channel, and the transfer system receives components removed by the transfer system through the transfer channel; the components required for pre-processing work include a new doctor blade holder 46 and / or a base material; the components removed by the transfer system include a part 14 and / or an old doctor blade holder 45; the transfer system comprises a transfer bin 21, a first driving assembly for driving the transfer bin 21 to move, a cleaning assembly and a clamp assembly arranged in the transfer bin 21, a transfer channel is formed between the transfer bin 21 and the transfer system, a forming position and a transfer position are arranged in the forming system, and the first driving assembly drives the cleaning assembly and the clamp assembly to translate between the forming position and the transfer position; the clamp assembly is used for clamping the components required for pre-processing work and the components removed by the transfer system, and under the driving of the transfer bin 21, the components required for pre-processing work are transferred from the transfer system to the transfer position, and then transferred from the transfer position to the forming position, and the components removed by the transfer system are transferred from the forming position to the transfer position, and then transferred from the transfer position to the transfer system; the cleaning assembly is used for moving to the forming position to clean the forming system under the driving of the transfer bin 21; and the forming system is used for printing the part 14 in the forming position.

[0049] In the application, the first driving assembly can be any driving element capable of horizontal movement, such as a synchronous belt wheel, an electric cylinder or a pneumatic cylinder.

[0050] In the application, the transfer system further comprises a bottom telescopic protective cover 25 arranged at the bottom of the transfer bin 21, and the bottom telescopic protective cover 25 is used for sealing between the transfer bin 21 and the forming system.

[0051] In the application, the transfer system further comprises a forming chamber sealing door 27 arranged on one side of the transfer channel, which is used for controlling the opening and closing of the transfer channel to ensure the environment required by the forming system.

[0052] In the application, the cleaning assembly comprises a part blowing cleaning assembly 22, a powder collecting pipeline 17 and a blowing gas source pipeline 18, the blowing gas source pipeline 18 is communicated with the part blowing cleaning assembly 22, the interface of the part blowing cleaning assembly 22 and the interface of the powder collecting pipeline 17 are arranged in the transfer bin 21, and under the driving of the transfer bin 21, the part blowing cleaning assembly 22 and the powder collecting pipeline 17 translate between the forming position and the transfer position; wherein the part blowing cleaning assembly 22 and the powder collecting pipeline 17 each have another interface extending out of the transfer bin 21.

[0053] In the application, the transfer system further comprises a top telescopic protective cover 20 arranged at the top of the transfer bin 21, and when the transfer bin 21 is located at the forming position, the top telescopic protective cover 20 is used for protecting the galvanometer assembly 12 arranged at the top of the forming system.

[0054] In the present application, the top telescopic cover 20 is connected with a lens blowing air inlet pipe 19 and a lens blowing air outlet pipe, the lens blowing air inlet pipe 19 is communicated with the lens blowing air outlet pipe, and the lens blowing air inlet pipe 19 and the lens blowing air outlet pipe respectively blow and clean the galvanometer assembly 12 when the transfer chamber 21 is located at the forming position.

[0055] The blowing gas source pipe 18 is used to provide a blowing gas source for the part blowing cleaning assembly 22, the part blowing cleaning assembly 22 is distributed along the periphery of the forming chamber 3, the lens blowing air inlet pipe 19 is distributed in the external separate area at the top end of the forming chamber 3, and the top telescopic cover 20 is installed on the periphery of the lens blowing air inlet pipe 19. The part blowing cleaning assembly 22 is used to clean the parts 14 in the forming chamber 3, and the powder recovery pipe 17 is used to recover the powder material blown off the parts 14.

[0056] Specifically, the top telescopic cover 20 and the bottom telescopic cover 25 are both concertinas or structural members capable of elastic sealing known to those skilled in the art, and as a preferred embodiment of the present application, the top telescopic cover 20 and the bottom telescopic cover 25 are both concertinas, and a third driving member is arranged on the top telescopic cover 20 and the bottom telescopic cover 25 simultaneously or separately, for driving the top telescopic cover 20 and the bottom telescopic cover 25 to move, so as to realize sealing or non-sealing of the transfer chamber 21 and the forming system.

[0057] Referring to Figure 4 In the present application, the clamp assembly includes a first clamp 23, a second clamp 24, and a second driving assembly for driving the first clamp 23 and the second clamp 24 to act, the first clamp 23 and the second clamp 24 are respectively arranged at the front and rear positions of the Figure 1 Specifically, the second driving assembly is a servo cylinder or a servo electric cylinder, which is a driving member known to those skilled in the art.

[0058] In the present application, the transfer system includes a transfer trolley 31 and a transfer trolley Z-direction moving member 30 installed on the transfer trolley 31, and the transfer trolley Z-direction moving member 30 is used to lift the parts required for the pre-treatment work, or to lower the parts removed by the transfer system.

[0059] In the present application, the transfer system further comprises a transfer vehicle sealing cabin 29 installed above the transfer vehicle 31, the transfer vehicle Z direction moving member 30 is placed in the transfer vehicle sealing cabin 29, and the transfer vehicle sealing cabin 29 is used to accommodate components required for pre-treatment work or components removed by the transfer system; the side of the transfer vehicle sealing cabin 29 facing the transfer channel is provided with a transfer vehicle sealing door 28. As a preferred embodiment of the present application, the transfer vehicle sealing door 28 and the forming chamber sealing door 27 are opposite to each other, and when the transfer channel needs to be opened, the transfer vehicle sealing door 28 and the forming chamber sealing door 27 are opened at the same time; when the transfer channel needs to be closed, the transfer vehicle sealing door 28 and the forming chamber sealing door 27 are closed at the same time. In the present application, the forming system comprises a screw locking assembly 36 located at the forming position, which is used to disassemble and install the doctor blade holder 33; the clamp assembly is also used to clamp the old doctor blade holder 45 and / or the new doctor blade holder 46, and under the driving of the transfer cabin 21, the new doctor blade holder 46 is transferred from the transfer system to the transfer position, and then from the transfer position to the installation position of the doctor blade holder 33 at the forming position, the doctor blade holder 33 is replaced through the screw locking assembly 36, and the replaced old doctor blade holder 45 is transferred from the forming position to the transfer position under the driving of the transfer cabin 21, and then from the transfer position to the transfer system.

[0060] In the present application, the forming system further comprises a forming platform and a rotary down-draw assembly connected with the forming platform, the forming platform is used to place the substrate kit 8; the rotary down-draw assembly is connected with the substrate kit 8, and the rotary down-draw assembly is used to fasten the substrate kit 8 and ensure the stability of the substrate kit 8 during the forming process; the substrate kit 8 is formed by a plurality of substrate stacks, and a positioning member is arranged between adjacent two substrates; the positioning member is used for positioning during the stacking of the substrates. The positioning member is a substrate positioning pin 7, a positioning block or the like structure, and as a preferred embodiment of the present application, the positioning member is a substrate positioning pin 7. The clamp assembly is used to clamp the substrate and / or the part 14, under the driving of the transfer cabin 21, the substrate is transferred from the transfer system to the transfer position, and then from the transfer position to the forming position, and the substrate kit 8 is stacked above the forming platform, and under the driving of the transfer cabin 21, the part 14 is transferred from the forming position to the transfer position, and then from the transfer position to the transfer system.

[0061] In the present application, the forming system further comprises a sealing assembly for sealing the rotary down-draw assembly and the forming platform, the sealing assembly is a sealing plate 5 and / or a piston rod sealing member 6 (rubber ring or rubber pad, etc.) arranged between the rotary down-draw assembly and the forming platform, the sealing plate 5 is arranged in the horizontal direction of the substrate, and the piston rod sealing member 6 is arranged in the height direction of the substrate.

[0062] Referring to Figure 1 and Figure 2In the present application, the forming system comprises a base 1, a forming chamber Z moving part 2, a forming chamber 3, a rotary down-drawing assembly, a forming chamber sealing plate 11, a galvanometer assembly 12, a galvanometer lens 13, a scraper 15, a powder falling barrel 38, a left powder collecting box 32 and a right powder collecting box 39, the forming chamber sealing plate 11 surrounds to form a sealed forming chamber 3, the galvanometer assembly 12 is arranged in the forming chamber 3 and is fixedly connected with the top forming chamber sealing plate 11, the galvanometer lens 13 is installed on the galvanometer assembly 12, when the lens sprays the air inlet pipe 19 and the lens sprays the air outlet pipe moves into the forming chamber 3, the installation position of the galvanometer lens 13 corresponds, the base 1 is installed at the bottom of the forming chamber 3, and the forming chamber Z moving part 2 is fixedly connected with the base 1. A base material positioning pin 7 is arranged on the base material, a plurality of base materials are stacked to form a base material kit 8 through the base material positioning pin 7, the scraper 15 is located above the base material kit 8, the powder falling barrel 38 extends into the forming chamber 3 and communicates with the scraper 15, and the powder 9 in the forming chamber is arranged between the base material kit 8 and the forming chamber sealing plate 11. A wind field air outlet 10 and a wind field return air outlet 26 are arranged on the opposite sides of the bottom of the forming chamber 3 respectively, and the wind field air outlet 10, the forming chamber 3 and the wind field return air outlet 26 are communicated. The rotary down-drawing assembly comprises a first rotary down-drawing assembly 4 and a second rotary down-drawing assembly 16, and the first rotary down-drawing assembly 4 and the second rotary down-drawing assembly 16 are connected with the base material kit 8 and used for tensioning the base material during printing to prevent the base material from loosening. The left powder collecting box 32 and the right powder collecting box 39 are both at the bottom of the forming chamber 3 and communicate with the forming chamber 3. The forming chamber Z moving part 2 lifts the parts or is used for putting down the parts.

[0063] In the present application, the first rotary down-drawing assembly 4 and the second rotary down-drawing assembly 16 can be cylinders or electric cylinders and other driving components known in the art.

[0064] Referring to Figure 3 The scraper holder quick-change structure comprises a to-be-replaced scraper holder 40, a pin 41, a to-be-replaced scraper holder fastening screw 42 and a linear sliding assembly 43, wherein the new scraper holder 46 moved into the forming chamber is the to-be-replaced scraper holder 40, the to-be-replaced scraper holder 40 is installed with the to-be-replaced scraper 34, the pin 41 is used for positioning the to-be-replaced scraper holder 40 and the linear sliding assembly 43 during movement of the to-be-replaced scraper holder 40 in the forming chamber, the linear sliding assembly 43 moves along the forming chamber under the driving of the transfer warehouse 21, and the to-be-replaced scraper holder fastening screw 42 is used for fixedly connecting the linear sliding assembly 43 and the to-be-replaced scraper holder 40.

[0065] Referring to Figure 5In the present application, during the transfer process, the new doctor blade holder 46 and the old doctor blade holder 45 are placed on the transfer trolley platform 44, and the new doctor blade holder 46 and the old doctor blade holder 45 slide left and right on the transfer trolley platform 44 to realize the replacement of the clamp assembly with the new doctor blade holder 46 or the old doctor blade holder 45. Wherein, the transfer trolley platform 44 refers to the upper surface of the transfer trolley Z-direction moving piece 30.

[0066] In the present application, the front window sealing door 38 is arranged on the forming chamber sealing plate 11 of the formed forming chamber 3, which is convenient for observing the printing condition of the part 14 in the forming chamber 3.

[0067] In the present application, the forming chamber Z-direction moving piece 2 moves along the Z-direction through the fourth driving piece, and the transfer trolley Z-direction moving piece 30 moves along the Z-direction through the fifth driving piece. The forming chamber Z-direction moving piece 2 and the transfer trolley Z-direction moving piece 30 can be driven by a cylinder or an electric cylinder, which is well known to those skilled in the art.

[0068] In the present application, the forming chamber Z-direction moving piece 2 moves along the Z-direction through the fourth driving piece, and the transfer trolley Z-direction moving piece 30 moves along the Z-direction through the fifth driving piece. The forming chamber Z-direction moving piece 2 and the transfer trolley Z-direction moving piece 30 can be driven by a cylinder or an electric cylinder, which is well known to those skilled in the art. Figure 1 The present application also provides a full-automatic printing method based on additive manufacturing, comprising the following steps:

[0069] The full-automatic printing system based on additive manufacturing is installed;

[0070] Before the part 14 is printed, the transfer system transfers the base material to the transfer channel, the transfer channel is opened, the clamp assembly clamps the base material and moves into the transfer warehouse 21, the transfer channel is closed, the clamp assembly clamps the base material and is driven by the transfer warehouse 21 to transfer the base material from the transfer system to the transfer position, and then from the transfer position to the forming position, and the base material is stacked above the forming platform to form the base material kit 8.

[0071] After the part 14 is printed, the clamp assembly and the cleaning assembly are driven by the transfer warehouse 21 to transfer from the transfer position to the forming position, the cleaning assembly blows and cleans the forming system, at the same time, the clamp assembly clamps the part 14 and is driven by the transfer warehouse 21 to transfer from the forming position to the transfer position, the transfer channel is opened, the clamp assembly transfers the part 14 to the transfer system, the transfer channel is closed, and the transfer system removes the part 14.

[0072]

[0073] ​Before or after the part 14 is printed, the transfer system moves the new doctor blade holder 46 to the transfer channel, the transfer channel is opened, the clamp assembly clamps and moves the new doctor blade holder 46 into the transfer warehouse 21, the transfer channel is closed, the clamp assembly clamps the new doctor blade holder 46 and moves the new doctor blade holder 46 from the transfer position to the doctor blade holder 33 installation position of the forming position under the driving of the transfer warehouse 21, and the replacement of the doctor blade holder 33 is completed in the forming system; the clamp assembly clamps the replaced old doctor blade holder 45, and moves the old doctor blade holder 45 from the forming position to the transfer position under the driving of the transfer warehouse 21, and then from the transfer position to the transfer system, the transfer channel is closed, and the transfer system removes the old doctor blade holder 45.

[0074] The present application is based on a full-automatic printing method of additive manufacturing, including powder cleaning and recycling, galvanometer lens 13 cleaning, part 14 transfer, substrate replacement, forming chamber Z-direction moving piece 2 cleaning, doctor blade holder 33 replacement, doctor blade alignment and substrate thickness recording.

[0075] The step S2 is specifically:

[0076] Powder cleaning and recycling: after the part 14 is printed, the part 14 is lowered below the forming platform through the forming chamber Z-direction moving piece 2, the transfer warehouse 21 is moved to directly above the forming chamber Z-direction moving piece 2 (at position A), the bottom telescopic cover 25 is lowered to form a seal with the forming chamber sealing plate 11, the top telescopic cover 20 is raised to form a seal with the galvanometer assembly 12, the powder recycling port A2 and the air inlet B2 channel are opened, after stabilization, the forming chamber Z-direction moving piece 2 is raised, the part blowing and cleaning assembly 22 and the powder collection pipeline 17 clean and recycle powder while the forming chamber Z-direction moving piece 2 is rising, and the forming chamber Z-direction moving piece 2 stops when it rises to the position of the clamp assembly, the first rotary down-drawing assembly 4 and the second rotary down-drawing assembly 16 are both loosened, the clamp assembly moves towards each other to clamp the part 14, the forming chamber Z-direction moving piece 2 is lowered to an appropriate position below the forming platform, the first rotary down-drawing assembly 4 and the second rotary down-drawing assembly 16 clamp the remaining substrates, and the powder recycling port A2 and the air inlet B2 channel are closed.

[0077] Galvanometer lens 13 cleaning: after the powder cleaning and recycling is completed, the powder recycling port A2 and the air inlet B2 channel are closed, the lens 13 cleaning powder recycling port A1 and the lens 13 cleaning air inlet B1 are opened, and the cleaning and powder recycling of the galvanometer lens 13 is started, and stops until the galvanometer lens 13 is cleaned.

[0078] Part 14 transfer: After the powder cleaning is completed, the top telescopic shield 20 is moved down, the bottom telescopic shield 25 is moved up, the sealing process is cancelled, the transfer bin 21 is moved to the initial position (B), i.e. the transfer position, the bottom telescopic shield 25 is moved down to form a seal with the forming chamber sealing plate 11, the top telescopic shield 20 is moved up to form a seal with the galvanometer assembly 12, the forming chamber sealing door 27 is opened to E, the transfer car sealing door 28 is opened to G, the transfer channel is opened, the transfer car 31 is moved to directly below the transfer bin 21 at C, the Z-direction moving part 30 of the transfer car is raised to completely hold the part 14, the clamp assembly is moved to the opposite sides until the part 14 is loosened, the Z-direction moving part 30 of the transfer car is lowered to the lowest point, the transfer car 31 leaves the forming system, the forming chamber sealing door 27 and the transfer car sealing door 28 are both closed, i.e. the transfer channel is closed, and the transfer of the part 14 is completed.

[0079] Substrate replacement: the forming chamber sealing door 27 is opened to E, the transfer car sealing door 28 is opened to G, the transfer channel is opened, the transfer car 31 is moved to directly below the transfer bin 21 at C, the Z-direction moving part 30 of the transfer car is raised to the lowest layer of the substrate sleeve 8, the clamp assembly clamps the substrate sleeve 8, the Z-direction moving part 30 of the transfer car is lowered, after the transfer car 31 leaves the forming system, the forming chamber sealing door 27 and the transfer car sealing door 28 are both closed, i.e. the transfer channel is closed; the transfer bin 21 is moved to directly above the forming chamber Z-direction moving part 2, the forming chamber Z-direction moving part 2 is raised to the clamp until the substrate sleeve 8 is held, the clamp assembly is moved to the opposite sides until it is loosened, the forming chamber Z-direction moving part 2 is lowered below the forming platform, the transfer bin 21 is moved to the initial position B, the bottom telescopic shield 25 is moved down to form a seal with the forming chamber sealing plate 11, the top telescopic shield 20 is moved up to form a seal with the galvanometer assembly 12, i.e. the substrate replacement is completed.

[0080] Forming chamber Z-direction moving part 2 cleaning: the transfer bin 21 is moved alone to directly above the forming chamber Z-direction moving part 2, the powder recovery port A2 and the air inlet B2 channel are opened, the forming chamber Z-direction moving part 2 is raised, and the forming chamber Z-direction moving part 2 is cleaned and the powder is recovered alone.

[0081] Replacement of the scraper holder 33: the forming chamber sealing door 27 is opened, the scraper holder 33 is moved to above the screw locking assembly 36, the screw locking assembly 36 loosens the fastening screw 42 of the scraper holder to be replaced, after the scraper holder 33 is moved to directly above the forming chamber Z-direction moving part 2, the transfer bin 21 is moved to directly above the forming chamber Z-direction moving part 2, the clamp assembly clamps the scraper holder 33, and the transfer bin 21 is moved to the initial position B; see Figure 5The old doctor blade holder 45 is placed on the transfer platform 44, the transfer platform 44 slides, the new doctor blade holder 46 is replaced on the clamp assembly, the forming chamber sealing door 27 is closed, the transfer chamber 21 moves to the top of the forming chamber Z-direction moving piece 2, the clamp assembly moves to the opposite sides until the new doctor blade holder 46 is loosened, the transfer chamber 21 moves to the initial position B, the new doctor blade holder 46 moves to the position of the screw locking assembly 36, the doctor blade holder fastening screw 35 is fastened through the screw locking assembly 36, and the replacement of the doctor blade holder 33 is completed.

[0082] Doctor blade alignment and substrate thickness recording: the distance L from the upper surface of the forming chamber 3 to the clamped substrate set 8 of the forming chamber Z-direction moving piece can be recorded by the distance sensor when the substrate set 8 is taken or after the part 14 is taken, the minimum value L1 of the parameter is transmitted to the controller, the controller judges, and if the judgment result is that the alignment distance L1-a (a is the position of the blade part of the doctor blade holder 33 to the upper surface of the substrate set 8) needs to be raised, and the thickness b of the substrate set 8 can be calculated by using the average value of the adjacent two times.

[0083] The above is only used to illustrate the technical solutions of the present application, and is not limited to the present application; although the foregoing is described in detail with reference to the foregoing, those skilled in the art should understand that the foregoing recorded technical solutions can still be modified, or part or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A fully automated printing system based on additive manufacturing, characterized in that, Includes forming system, transfer system and transit system; A transfer channel is formed between the transfer system and the transit system. The transfer system provides the components required for the pretreatment work to the transit system through the transfer channel, and the transfer system receives the components removed from the transit system through the transfer channel. The components required for the pretreatment work include a new scraper holder (46) and / or a substrate. The components removed from the transit system include parts (14) and / or an old scraper holder (45). The transfer system includes a transfer chamber (21), a first drive component that moves the transfer chamber (21), and a cleaning component and a clamping component placed inside the transfer chamber (21). The transfer chamber (21) forms a transfer channel with the transfer system. The forming system is provided with a forming position and a transfer position. The first drive component drives the cleaning component and the clamping component to move between the forming position and the transfer position through the transfer chamber (21). The clamping assembly is used to clamp the components required for pre-processing and the components removed from the transfer system. Driven by the transfer chamber (21), the components required for pre-processing are transferred from the transfer system to the transfer position, and then from the transfer position to the forming position. The components removed from the transfer system are transferred from the forming position to the transfer position, and then from the transfer position to the transfer system. The cleaning component is used to move to the forming position to clean the forming system under the drive of the transfer chamber (21); The forming system is used to print parts (14) at the forming position.

2. The fully automated printing system based on additive manufacturing according to claim 1, characterized in that, The transfer system also includes a bottom telescopic cover (25) placed at the bottom of the transfer compartment (21), which is used to seal the transfer compartment (21) and the forming system.

3. The fully automated printing system based on additive manufacturing according to claim 2, characterized in that, The transfer system also includes a forming chamber sealing door (27) located on one side facing the transfer channel.

4. The fully automated printing system based on additive manufacturing according to claim 2, characterized in that, The cleaning assembly includes a part blowing cleaning assembly (22), a powder collection pipe (17), and a blowing air source pipe (18). The blowing air source pipe (18) is connected to the part blowing cleaning assembly (22). The interface of the part blowing cleaning assembly (22) and the interface of the powder collection pipe (17) are both located in the transfer chamber (21) and move between the forming position and the transfer position under the drive of the transfer chamber (21).

5. The fully automated printing system based on additive manufacturing according to claim 4, characterized in that, The transfer system also includes a top telescopic shield (20) placed on top of the transfer chamber (21). When the transfer chamber (21) is in the forming position, the top telescopic shield (20) is used to protect the galvanometer assembly (12) set on top of the forming system.

6. The fully automated printing system based on additive manufacturing according to claim 5, characterized in that, The top telescopic cover (20) is connected to a lens blow-in air pipe (19) and a lens blow-out air pipe. The lens blow-in air pipe (19) and the lens blow-out air pipe are connected. When the transfer chamber (21) is in the forming position, the lens blow-in air pipe (19) and the lens blow-out air pipe respectively blow-clean the galvanometer assembly (12).

7. The fully automated printing system based on additive manufacturing according to any one of claims 1-6, characterized in that, The clamping assembly includes a first clamp (23), a second clamp (24), and a second drive assembly for driving the first clamp (23) and the second clamp (24) to move; The first clamp (23) and the second clamp (24) cooperate to hold the components required for pre-processing and the components removed from the transfer system.

8. The fully automated printing system based on additive manufacturing according to any one of claims 1-6, characterized in that, The transfer system includes a transfer vehicle (31) and a Z-axis moving part (30) of the transfer vehicle installed on the transfer vehicle (31). The Z-axis moving part (30) of the transfer vehicle is used to lift the components required for pre-processing or to lower the components removed by the transfer system.

9. The fully automated printing system based on additive manufacturing according to claim 8, characterized in that, The transfer system also includes a transfer vehicle sealed compartment (29) installed above the transfer vehicle (31), the transfer vehicle Z-axis moving part (30) is placed inside the transfer vehicle sealed compartment (29), and the transfer vehicle sealed compartment (29) is used to accommodate the components required for pretreatment or the components removed from the transfer system; The sealed compartment (29) of the transfer vehicle is provided with a sealed door (28) on the side facing the transfer channel.

10. The fully automated printing system based on additive manufacturing according to any one of claims 1-6, characterized in that, The forming system includes a screw fastening assembly (36) located at the forming position, which is used to disassemble and install the scraper holder (33); the clamping assembly is also used to clamp the old scraper holder (45) and the new scraper holder (46). Driven by the transfer chamber (21), the new scraper holder (46) is transferred from the transfer system to the transfer position, and then from the transfer position to the scraper holder (33) installation position at the forming position. The scraper holder (33) is replaced by the screw fastening assembly (36), and the replaced old scraper holder (45) is transferred from the forming position to the transfer position, and then from the transfer position to the transfer system, driven by the transfer chamber (21).

11. The fully automated printing system based on additive manufacturing according to any one of claims 1-6, characterized in that, The forming system also includes a forming platform and a rotary pull-down assembly connected to the forming platform. The forming platform is used to place the substrate kit (8). The rotary pull-down assembly is connected to the substrate kit (8) and is used to fasten the substrate kit (8). The substrate kit (8) is formed by stacking multiple substrates, with a positioning element between two adjacent substrates; the positioning element is used for positioning when the substrates are stacked.

12. A fully automated printing method based on additive manufacturing, characterized in that, Includes the following steps: The assembly forms the fully automated additive manufacturing-based printing system as described in claim 11; Before part (14) is printed, the transfer system transfers the substrate to the transfer channel. The transfer channel is opened, the clamping assembly clamps the substrate and moves it into the transfer chamber (21). The transfer channel is closed, the clamping assembly clamps the substrate and, driven by the transfer chamber (21), transfers the substrate from the transfer system to the transfer position, and then from the transfer position to the forming position, and stacks it above the forming platform to form the substrate kit (8). After part (14) is printed, the clamping assembly and the cleaning assembly are both transferred from the transfer position to the forming position under the drive of the transfer chamber (21). The cleaning assembly blows and cleans the forming system. At the same time, the clamping assembly holds part (14) and is transferred from the forming position to the transfer position under the drive of the transfer chamber (21). The transfer channel is opened, the clamping assembly transfers part (14) to the transfer system, the transfer channel is closed, and the transfer system removes part (14). The transfer system moves the new scraper holder (46) to the transfer channel. The transfer channel opens, and the clamping assembly clamps the new scraper holder (46) and moves it into the transfer chamber (21). The transfer channel closes, and the clamping assembly holds the new scraper holder (46) and, driven by the transfer chamber (21), transfers the new scraper holder (46) from the transfer position to the scraper holder (33) installation position in the forming position. The replacement of the scraper holder (33) is completed in the forming system. The clamping assembly clamps the old scraper holder (45) and, driven by the transfer chamber (21), transfers the old scraper holder (45) from the forming position to the transfer position, and then from the transfer position to the transfer system. The transfer channel closes, and the transfer system removes the old scraper holder (45).

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