An additive manufacturing build chamber and additive manufacturing system

Abstract

The application discloses an additive manufacturing forming bin and an additive manufacturing system, and relates to the technical field of additive manufacturing, aiming to solve the problem of long printing time and reduced printing quality caused by opening the bin for cleaning to avoid laser effective power attenuation caused by pollution during the printing process. The additive manufacturing forming bin comprises a forming bin body, a light-transmitting part, a light-transmitting protective film assembly and a manipulator. The forming bin body comprises a bottom plate, a side wall and a top plate, the bottom plate and the top plate are fixedly arranged at the upper and lower ends of the side wall to form a sealed space, and the top plate is provided with a first through hole. The light-transmitting part is sealingly embedded in the first through hole and is used for transmitting laser above the forming bin body. The light-transmitting protective film assembly is located in the sealed space, the light-transmitting protective film assembly comprises multiple layers of light-transmitting protective films which can be stacked and detached from each other, and the light-transmitting protective film assembly is detachably covered on the lower surface of the light-transmitting part. The manipulator is fixedly arranged in the interior of the forming bin body and is used for detaching the light-transmitting protective film.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of additive manufacturing, in particular to an additive manufacturing forming bin and an additive manufacturing system. BACKGROUND

[0002] In a laser selective sintering device, a laser light source is generally placed above the forming bin, and a light-transmitting component is arranged between the light source and the forming bin. The light-transmitting component plays a sealing protection role for the laser system under the premise of ensuring that the laser can normally transmit.

[0003] During the printing process, splashing of the printing process molten pool and generation of black slag are inevitable, which will cause the splashing black slag to adhere to the light-transmitting component, resulting in attenuation of the effective power of the laser scanning on the part through the light-transmitting component. Especially for large-size parts, the continuous accumulation of pollutants will inevitably cause pollution of the light-transmitting component, which seriously affects the metallurgical quality and forming size of the product.

[0004] At present, in order to avoid the attenuation of the effective power of the laser caused by pollution during the printing process of the existing forming device, the forming bin needs to be opened at intervals to clean the light-transmitting component. However, each cleaning process will interrupt the printing process of the part, which not only prolongs the printing time and reduces the production efficiency, but also affects the printing quality of the part due to the interruption of the continuity of the printing process. SUMMARY

[0005] The purpose of the present application is to provide an additive manufacturing forming bin and an additive manufacturing system for avoiding opening the bin to clean the light-transmitting component to ensure the effective power of the laser, shorten the printing time, and improve the printing quality of the part.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] In a first aspect, the present application provides an additive manufacturing forming bin, comprising:

[0008] a forming bin body, the forming bin body comprising a bottom plate, a side wall and a top plate, the bottom plate and the top plate being fixedly arranged at the upper and lower ends of the side wall to form a sealed space, and the top plate being provided with a first through hole;

[0009] a light-transmitting component, the light-transmitting component being sealingly embedded in the first through hole and being used for transmitting the laser above the forming bin body;

[0010] a light-transmitting protective film assembly located in the sealed space, the light-transmitting protective film assembly comprising a plurality of layers of light-transmitting protective films which are stacked and can be detached from each other, and the light-transmitting protective film assembly being detachably covered on the lower surface of the light-transmitting component;

[0011] The mechanical hand is fixedly arranged in the interior of the forming bin body and is used for disassembling the light-transmitting protective film.

[0012] Optionally, in the additive manufacturing forming bin, the light-transmitting protective film assembly is adhesively connected to the lower surface of the light-transmitting component, and the multiple layers of light-transmitting protective films are adhesively detachably connected.

[0013] Optionally, in the additive manufacturing forming bin, each layer of light-transmitting protective film has a downwardly bent folding edge, and the bottom surface of the folding edge of the upper layer of light-transmitting protective film and the top surface of the lower layer of light-transmitting protective film are provided with an adhesive connecting point.

[0014] Optionally, in the additive manufacturing forming bin, each layer of light-transmitting protective film has a downwardly bent folding edge, and the light-transmitting protective film further comprises multiple buckle structures, the buckle structures comprising a male buckle and a female buckle, one of the male buckle and the female buckle being fixedly arranged on the bottom surface of the folding edge of the upper layer of light-transmitting protective film, and the other of the male buckle and the female buckle being fixedly arranged on the top surface of the lower layer of light-transmitting protective film.

[0015] Optionally, in the additive manufacturing forming bin, the mechanical hand comprises:

[0016] The mechanical hand body is fixedly arranged in the interior of the forming bin body;

[0017] The clamping jaw is arranged at one end of the mechanical hand body and is used for clamping the light-transmitting protective film;

[0018] The controller is arranged on the mechanical hand body and is in communication connection with the mechanical hand body and the clamping jaw and is used for controlling the movement of the mechanical hand body and the clamping jaw.

[0019] Optionally, in the additive manufacturing forming bin, the additive manufacturing forming bin further comprises a storage bin, the storage bin being fixedly arranged in the interior of the forming bin body and being used for storing the disassembled light-transmitting protective film.

[0020] Optionally, in the additive manufacturing forming bin, the side wall of the forming bin body is further provided with a second through hole, the second through hole being used for connecting with an airflow and providing wind field protection for the light-transmitting component.

[0021] Optionally, in the additive manufacturing forming bin, the material of the light-transmitting protective film comprises silicon nitride.

[0022] Optionally, in the additive manufacturing forming bin, the light-transmitting rate of the light-transmitting protective film is greater than or equal to 90%.

[0023] Compared with the prior art, the additive manufacturing forming bin provided by the application has the following beneficial effects: the mechanical arm is fixedly arranged in the forming bin body, and the light-transmitting protective film assembly composed of multiple layers of light-transmitting protective films which are stacked and detachable is arranged on the lower surface of the light-transmitting component. In the process of additive manufacturing, when the light-transmitting protective film is polluted by splashes and other impurities, the forming bin body does not need to be opened, the mechanical arm can directly operate in the forming bin body, the lower layer of the light-transmitting protective film which is polluted is torn off, and the upper layer of the light-transmitting protective film which is not polluted is exposed. By arranging multiple layers of light-transmitting protective films on the light-transmitting component and tearing off the light-transmitting protective film which is polluted by the mechanical arm layer by layer, the effective power of the laser can be ensured not to attenuate without opening the bin, the problem of the printing quality being reduced due to opening the bin for cleaning is avoided, the printing time cost is reduced, and the efficiency and quality of the additive manufacturing are improved.

[0024] In a second aspect, the application further provides an additive manufacturing system, the system comprising:

[0025] The additive manufacturing forming bin provided in the first aspect;

[0026] The laser system is arranged above the forming bin body, and the laser system is used for emitting laser which can penetrate the light-transmitting component.

[0027] Compared with the prior art, the additive manufacturing system provided in the second aspect has the same beneficial effects as the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the application, form a part of the application and, along with the specification, serve to explain the application. The illustrative embodiments of the application and their description serve to explain the application. They do not, however, limit the application, which is defined only by the appended claims. In the drawings:

[0029] Figure 1 The overall structure of the additive manufacturing forming bin provided in the embodiment of the application is shown in the schematic diagram;

[0030] Figure 2 The additive manufacturing forming bin provided in the embodiment of the application is shown in the schematic diagram of the light-transmitting protective film assembly;

[0031] Figure 3 The structure of the light-transmitting protective film assembly of the additive manufacturing forming bin provided in the embodiment of the application is shown in the schematic diagram.

[0032] Reference signs:

[0033] 1 is a forming bin body, 110 is a first through hole, 120 is a second through hole, 2 is a light transmission component, 3 is a light transmission protection film assembly, 310 is a light transmission protection film, 311 is a folded edge, 320 is a buckle structure, 321 is a male buckle, 322 is a female buckle, 4 is a mechanical hand, 410 is a mechanical hand body, 411 is a clamping jaw, 5 is a storage bin, 6 is a laser system. DETAILED DESCRIPTION

[0034] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited. The meaning of "several" is one or more, unless otherwise explicitly specified and limited.

[0037] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and should not be construed as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Please refer to Figure 1The additive manufacturing forming bin provided by the embodiment of the application comprises a forming bin body 1, a light-transmitting part 2, a light-transmitting protective film assembly 3 and a manipulator 4; wherein the forming bin body 1 comprises a bottom plate, a side wall and a top plate, the bottom plate and the top plate are fixedly arranged at the upper and lower ends of the side wall to form a sealed space, and the top plate is provided with a first through hole 110; the light-transmitting part 2 is sealingly embedded in the first through hole 110 and used for transmitting laser light above the forming bin body 1; the light-transmitting protective film assembly 3 is located in the sealed space, the light-transmitting protective film assembly 3 comprises a plurality of layers of light-transmitting protective films 310 which are stacked and can be detached from each other, and the light-transmitting protective film assembly 3 is detachably covered on the lower surface of the light-transmitting part 2; and the manipulator 4 is fixedly arranged in the interior of the forming bin body 1 and used for detaching the light-transmitting protective films 310.

[0040] In the process of additive manufacturing, when the light-transmitting protective films 310 are contaminated by impurities such as splashes, the forming bin body 1 does not need to be opened, the manipulator 4 can directly operate in the forming bin body 1, the lower light-transmitting protective film 310 which is contaminated is torn off, and the upper light-transmitting protective film 310 which is not contaminated is exposed. By covering the light-transmitting part 2 with a plurality of layers of light-transmitting protective films 310 and tearing off the contaminated light-transmitting protective films 310 layer by layer by the manipulator 4, the effective power of the laser light can be ensured not to attenuate without opening the bin for cleaning, the problem of the printing quality being reduced due to opening the bin for cleaning is avoided, the printing time cost is reduced, and the efficiency and quality of additive manufacturing are improved.

[0041] As a possible implementation manner, as shown in Figure 1 The light-transmitting protective film assembly 3 is adhesively connected to the lower surface of the light-transmitting part 2, and the plurality of layers of light-transmitting protective films 310 are adhesively detachably connected.

[0042] Specifically, the light-transmitting protective film assembly 3 is glued to the lower surface of the light-transmitting component 2. The multiple layers of light-transmitting protective films 310 are also glued together, and this adhesive connection is detachable, meaning they can be separated when needed. This adhesive connection ensures a strong bond between the light-transmitting protective film assembly 3 and the lower surface of the light-transmitting component 2, preventing the assembly from detaching or shifting due to vibration, airflow disturbances, or other factors during normal use, thus ensuring effective protection of the light-transmitting component 2. Furthermore, the detachable adhesive connection between the multiple layers of light-transmitting protective films 310 allows for easy removal when replacing contaminated or damaged layers, reducing operational difficulty. Meanwhile, the adhesive bonding allows for a good seal between the multiple layers of light-transmitting protective film 310, preventing external dust, splashes, and other impurities from entering. This helps ensure the cleanliness and stability of the light-transmitting protective film assembly 3. Furthermore, by selecting an adhesive with high transparency and low refractive index, it can be ensured that the light-transmitting protective film 310 will not affect the light transmission through the light-transmitting component 2 and the light-transmitting protective film assembly 3 after bonding, thus guaranteeing its good optical performance.

[0043] In some embodiments, by embedding small magnetic materials at the edge or other suitable locations of each light-transmitting protective film 310—specifically, embedding a magnetic sheet at the top edge of the lower film and a magnetic sheet with opposite magnetic poles at the corresponding location on the upper film—the upper and lower films automatically adhere together due to the mutual attraction of their magnetic poles, achieving a detachable connection. During disassembly, the robotic arm 4 only needs to apply a pulling force sufficient to overcome the magnetic force to separate the upper and lower films.

[0044] As one possible implementation, such as Figure 2 As shown, each layer of light-transmitting protective film 310 has a downwardly bent edge 311, and the bottom surface of the edge 311 of the upper light-transmitting protective film 310 is adhesively connected to the top surface of the lower light-transmitting protective film 310.

[0045] Each layer of the light-transmitting protective film 310 is designed with its edges bent downwards to form folds 311. Adhesive is applied to the bottom surface of the main body of each light-transmitting film, both the non-folded edge 311 portion and the folded edge 311 portion. When constructing the light-transmitting protective film assembly 3, the upper light-transmitting protective film 310 is placed on top of the lower light-transmitting protective film 310, stacking them layer by layer. This allows the folded edge 311 of the upper film to adhere to the top surface of the lower film. At this time, the adhesive on the non-folded edge 311 portion of the upper film is tightly adhered to the corresponding portion of the lower light-transmitting protective film 310. Simultaneously, the adhesive on the bottom surface of the upper folded edge 311 is also bonded to the top surface of the lower light-transmitting protective film 310. In this way, through the action of the adhesive at multiple locations, the upper and lower films are firmly connected as one unit, thereby constructing a multi-layered film structure.

[0046] In particular implementation, when the light-transmitting protective film 310 needs to be replaced, the mechanical arm 4 moves to the target position according to the preset instruction, and can accurately identify and position the fold edge 311 of the lowermost light-transmitting protective film 310. Since the fold edge 311 has a relatively protruding structure, the mechanical arm 4 can firmly grasp the fold edge 311, and then the mechanical arm 4 applies appropriate pulling force to overcome the adhesive force generated at the connection position, so as to completely remove the lowermost light-transmitting protective film 310 from the stacked structure. After the lowermost light-transmitting protective film 310 is removed, the fold edge 311 of the light-transmitting protective film 310 originally on the upper layer naturally protrudes due to the absence of the lower film layer, and at this time the mechanical arm 4 can again accurately position the fold edge 311 and repeat the grasping and removing action. In this way, the contaminated light-transmitting protective film 310 can be removed one by one.

[0047] In this way, the fold edge 311 serves as a clear and protruding grasping target, which helps the mechanical arm 4 to quickly and accurately position the target single layer film, improves the accuracy and efficiency in the disassembly process. At the same time, the design of the fold edge 311 can ensure that the mechanical arm 4 accurately grasps the lowermost light-transmitting protective film 310, and when tearing off the film layer by overcoming the adhesive force, it will not affect other film layers that are not yet due for replacement, ensuring that each replacement operation is only for the single layer film that needs to be replaced, avoiding unnecessary material waste, and further improving the accuracy and economy of maintenance.

[0048] As a possible implementation, as shown in Figure 2 and Figure 3 Each light-transmitting protective film 310 has a downwardly bent fold edge 311, and the light-transmitting protective film 310 further includes a plurality of buckle structures 320, the buckle structure 320 includes a male buckle 321 and a female buckle 322, one of the male buckle 321 and the female buckle 322 is fixedly arranged on the bottom surface of the fold edge 311 of the upper light-transmitting protective film 310, and the other of the male buckle 321 and the female buckle 322 is fixedly arranged on the top surface of the lower light-transmitting protective film 310.

[0049] Specifically, during the manufacturing process of each layer of light-transmitting protective film 310, its edge is designed as a downward-bent folded edge 311. Simultaneously, a snap-fit ​​structure 320 is provided, with male snap 321 and female snap 322 respectively fixedly mounted on adjacent layers of light-transmitting protective film 310. Specifically, the male snap 321 is fixed to the bottom surface of the folded edge 311 of the upper light-transmitting protective film 310, while the female snap 322 is correspondingly fixed to the top surface of the lower light-transmitting protective film 310; or, the female snap 322 is fixed to the bottom surface of the folded edge 311 of the upper light-transmitting protective film 310, while the male snap 321 is correspondingly fixed to the top surface of the lower light-transmitting protective film 310. When assembling the light-transmitting protective film assembly 3, the folded edge 311 of the upper light-transmitting protective film 310 is attached to the top surface of the lower light-transmitting protective film 310, so that the male buckle 321 and the female buckle 322 are aligned with each other, and appropriate pressure is applied to make the male buckle 321 and the female buckle 322 snap together, thereby realizing the connection between the upper and lower light-transmitting protective films 310. In this way, the layers are connected one by one to assemble a complete light-transmitting protective film assembly 3.

[0050] This design provides a reliable connection method for the snap-fit ​​structure 320. Compared to other connection methods, the tight fit between the male snap-fit ​​321 and the female snap-fit ​​322 can withstand a certain degree of external force and pulling, further improving the stability of the connection between the multi-layer light-transmitting protective film 310. This ensures that the multi-layer light-transmitting protective film 310 maintains a stable connection during use, effectively preventing loosening between the film layers. Simultaneously, it facilitates the installation and disassembly of the light-transmitting protective film assembly 3, providing a positioning function between the film layers. During installation, simply aligning the male snap-fit ​​321 with the female snap-fit ​​322 and pressing it down ensures the relative position of the two film layers is determined, quickly completing the connection and improving assembly efficiency, saving time and labor costs.

[0051] As one possible implementation, such as Figure 1 As shown, the robotic arm 4 includes a robotic arm body 410, a gripper 411, and a controller; wherein, the robotic arm body 410 is fixed inside the forming chamber body 1; the gripper 411 is disposed at one end of the robotic arm body 410 and is used to grip the light-transmitting protective film 310; the controller is disposed on the robotic arm body 410 and is communicatively connected to the robotic arm body 410 and the gripper 411, and is used to control the movement of the robotic arm body 410 and the gripper 411.

[0052] In specific implementation, when the light-transmitting protective film 310 needs to be operated, the controller sends corresponding control signals to the mechanical arm body 410 and the clamping jaw 411 according to preset programs and algorithms, accurately controls the motion track of the mechanical arm body 410, and moves the mechanical arm body 410 to a predetermined position, so that the clamping jaw 411 accurately approaches the target light-transmitting protective film 310. Meanwhile, the controller can also control the opening and closing action of the clamping jaw 411, and when the clamping jaw 411 reaches the position of the target light-transmitting protective film 310, the clamping jaw 411 performs the opening and closing action as needed to grasp the light-transmitting protective film 310. After the clamping operation is completed, the controller can control the mechanical arm body 410 to move the clamped light-transmitting protective film 310 to the recycling area, and control the mechanical arm body 410 to become a folded state to save space. In this way, when the multi-layer light-transmitting protective film 310 is disassembled, the controller can control the actions of the mechanical arm body 410 and the clamping jaw 411, so that the clamping jaw 411 successively clamps and removes the light-transmitting protective film 310 that needs to be replaced due to pollution, while ensuring the continuity and accuracy of the operation.

[0053] As a possible implementation, as shown in Figure 1 The additive manufacturing forming bin further comprises a storage bin 5 fixedly arranged in the interior of the forming bin body 1, and used for storing the disassembled light-transmitting protective film 310.

[0054] The storage bin 5 is fixedly arranged in the additive manufacturing forming bin, and is fixedly installed in the closed space of the forming bin body 1 through welding, bolt connection or other manners. The installation position needs to ensure that it does not affect the normal work of other components, and also needs to facilitate the receiving and storage of the light-transmitting protective film 310 disassembled from the light-transmitting component 2 by the mechanical arm 4. The opening direction and size of the storage bin 5 are matched with the mechanical arm 4, so that the mechanical arm 4 can conveniently place the disassembled light-transmitting protective film 310 into the storage bin 5 after disassembling the light-transmitting protective film 310. In this way, the storage bin 5 is arranged in the interior of the forming bin body 1, and when the light-transmitting protective film 310 needs to be replaced, the mechanical arm 4 can conveniently and quickly temporarily store the disassembled light-transmitting protective film 310 into the internal storage bin 5, and after the additive manufacturing process is completed, the contaminated light-transmitting protective film 310 can be conveniently and centrally processed.

[0055] As a possible implementation, as shown in Figure 1 The side wall of the forming chamber body is also provided with a second through hole 120, and the second through hole 120 is used for connecting with an airflow to provide wind field protection for the light-transmitting component 2.

[0056] In the specific implementation, a second through hole 120 is formed in the side wall of the forming chamber body, and the second through hole 120 is connected with an external air flow supply device to form a complete air flow channel. When the external air flow supply device is started, air flow can enter the inside of the forming chamber body through the second through hole 120 and directly act on the lower side of the light-transmitting protective film assembly 3. In this way, in the additive manufacturing process, various impurities such as tiny particles and splashes are generated, and if these impurities adhere to the light-transmitting protective film assembly 3, the light-transmitting rate of the light-transmitting protective film assembly 3 will gradually decrease, and the effective power of the laser will be affected. The air flow introduced through the second through hole 120 forms an air field on the surface of the light-transmitting protective film assembly 3, which can effectively blow away these impurities from the light-transmitting protective film assembly 3 and prevent the deposition of impurities, thereby ensuring the cleanliness of the light-transmitting protective film assembly 3 and ensuring that the laser can continuously and stably transmit, thereby maintaining the high precision and stability in the additive manufacturing process. At the same time, in the additive manufacturing process, the long-time irradiation of the laser on the light-transmitting component 2 and the light-transmitting protective film assembly 3 will cause the temperature of the light-transmitting component 2 and the light-transmitting protective film assembly 3 to rise, and the excessively high temperature will affect the optical performance and service life of the light-transmitting component 2 and the light-transmitting protective film assembly 3. The air field formed by the external air flow through the second through hole 120 can take away the heat on the light-transmitting component 2 and the light-transmitting protective film assembly 3 to a certain extent, thereby playing a role in cooling and heat dissipation, so that the temperature of the light-transmitting component 2 and the light-transmitting protective film assembly 3 is within a suitable range, and the stability and service life of the equipment are improved.

[0057] As a possible implementation, the material of the light-transmitting protective film 310 includes silicon nitride. The silicon nitride is selected as the material of the light-transmitting protective film 310, and the silicon nitride can resist the corrosion of chemical substances that may occur in the additive manufacturing process. The silicon nitride protective film is not easy to react with the splashed substances, can effectively prevent chemical corrosion, and prolong the service life. In addition, the silicon nitride material has good high-temperature resistance. In the additive manufacturing process, when a high-energy laser is used, a large amount of heat will be generated on the light-transmitting protective film assembly 3. The silicon nitride can withstand a relatively high temperature and will not deform or be damaged due to high temperature, thereby causing performance damage.

[0058] In some embodiments, the material of the light-transmitting protective film 310 can be aluminum oxide, silicon carbide, or boron nitride, etc. As the material of the light-transmitting protective film 310, these materials meet the requirements of relatively stable chemical stability, can resist the corrosion of common chemical substances in the additive manufacturing process, and at the same time have good high-temperature resistance.

[0059] Further, the light-transmitting rate of the light-transmitting protective film 310 is greater than or equal to 90%. In the additive manufacturing process, the light-transmitting protective film with high light-transmitting rate can ensure that the laser beam passes through with high energy efficiency, reduce the energy loss of the laser beam, and improve the production efficiency.

[0060] The application also provides an additive manufacturing system, which includes the light-transmitting protective film assembly. Figure 1As shown, the additive manufacturing system 6 comprises a forming bin according to the first aspect, and a laser system 6 arranged above the forming bin body 1 for emitting laser light that can pass through the light-transmissive component 2.

[0061] Compared with the prior art, the specific embodiments of the additive manufacturing system are as described above for the additive manufacturing forming bin, and will not be described here again.

[0062] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The above description is merely specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An additive manufacturing build chamber, characterized by, The application relates to an additive manufacturing forming bin. The forming bin body comprises a bottom plate, a side wall and a top plate, the bottom plate and the top plate are fixedly arranged at the upper and lower ends of the side wall to form a sealed space, and a first through hole is arranged on the top plate; A light-transmitting component is sealingly embedded in the first through hole and used for transmitting laser light above the forming bin body; A light-transmitting protective film assembly is located in the sealed space, the light-transmitting protective film assembly comprises a plurality of light-transmitting protective films which are stacked and can be detached from each other, the light-transmitting protective film assembly is adhesively connected to the lower surface of the light-transmitting component, and the light-transmitting protective films are adhesively and detachably connected; A mechanical hand is fixedly arranged in the interior of the forming bin body and used for detaching the light-transmitting protective films; Each light-transmitting protective film has a downwardly bent folding edge, and the light-transmitting protective film further comprises a plurality of buckle structures, one of the male buckle and the female buckle is fixedly arranged on the bottom surface of the folding edge of the upper light-transmitting protective film, and the other of the male buckle and the female buckle is fixedly arranged on the top surface of the lower light-transmitting protective film; The side wall of the forming bin body is further provided with a second through hole, the second through hole is used for connecting air flow and providing wind field protection for the light-transmitting component.

2. The additive manufacturing forming bin of claim 1, wherein, The mechanical hand comprises: A mechanical hand body is fixedly arranged in the forming bin body; A clamping jaw is arranged at one end of the mechanical hand body and used for clamping the light-transmitting protective film; A controller is arranged on the mechanical hand body, the controller is in communication connection with the mechanical hand body and the clamping jaw, and is used for controlling the movement of the mechanical hand body and the clamping jaw.

3. The additive manufacturing forming bin of claim 1, wherein, The additive manufacturing forming bin further comprises a storage bin which is fixedly arranged in the interior of the forming bin body and used for storing the detached light-transmitting protective films.

4. The additive manufacturing forming bin of claim 1, wherein, The material of the light-transmitting protective film comprises silicon nitride.

5. The additive manufacturing forming bin of claim 1, wherein, The light transmittance of the light-transmitting protective film is greater than or equal to 90%.

6. An additive manufacturing system, characterized by The application relates to an additive manufacturing forming bin. A laser system is arranged above the forming bin body and is used for emitting laser light which can pass through the light-transmitting component. ​

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