A composite material manufacturing apparatus for space environment

Abstract

The application discloses a kind of composite material manufacturing equipment for space environment in the field of space manufacturing technology, including controller, support frame, work platform and photoetching component, photoetching component is fixed on support frame, support frame is fixedly connected with adsorption component, work platform is in the movement track of photoetching component and adsorption component, adsorption component, photoetching component and work platform are electrically connected with controller;Work platform includes workbench, workbench top is opened with work groove, work groove is equipped with material placing assembly, work groove bottom is equipped with printing groove and a plurality of storage grooves from left to right, printing groove bottom is fixedly connected with first telescopic rod, first telescopic rod top is fixedly connected with work plate, work plate inside is uniformly provided with a plurality of first electromagnet.The application is simple and easy to operate, through the cooperative work between controller, photoetching component, adsorption component, workbench and material placing assembly, printing raw material can be evenly and stably laid on printing substrate, to improve printing precision.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of space manufacturing, and specifically relates to a composite material manufacturing equipment for a space environment. BACKGROUND

[0002] With the continuous development of space technology, human exploration of space is increasingly in-depth, and the performance requirements of spacecraft are also increasingly high. Under such a background, composite materials and composite manufacturing technology gradually attract attention due to their unique advantages. Composite materials have excellent properties such as high strength, high stiffness, low density, corrosion resistance, and high temperature resistance, which can meet the use requirements of spacecraft in extreme environments. Composite manufacturing technology can realize the precise manufacturing of complex structural parts and improve the overall performance of spacecraft. Composite manufacturing is an advanced manufacturing technology that integrates multiple processes, tools or energy sources to realize the processing and forming of materials through synchronous work or synergistic effect. This technology significantly improves the flexibility and efficiency of the manufacturing process, and can produce products with complex structures and excellent performance.

[0003] At the same time, as one of the space-oriented composite manufacturing technologies, 3D printing technology can quickly manufacture the required parts and tools according to task requirements, improve the flexibility and autonomy of the task; through space manufacturing, the transportation cost from Earth to space can be reduced, and the total cost of the task can be reduced; and on distant planets such as the Moon and Mars, 3D printing technology can manufacture environment-adapted parts and tools according to actual needs, providing strong support for the smooth progress of the task.

[0004] Some space-oriented composite material manufacturing equipment today lays the 3D printing raw materials on the printing area through the airflow and then performs 3D printing through the laser layer-by-layer solidification method. When the airflow contacts the printing substrate, a certain degree of turbulence is generated. Due to the microgravity environment of the printing environment, these turbulent flows have a great impact on the uniformity of the raw materials laid on the substrate. Therefore, it is necessary to propose a space-oriented composite material manufacturing equipment that can uniformly and stably lay the printing raw materials on the printing substrate to improve the printing precision. SUMMARY

[0005] To solve the above problems, the application provides a space-oriented composite material manufacturing equipment, which is simple and easy to operate. Through the cooperative work between the controller, the photoetching assembly, the adsorption assembly, the workbench and the feeding assembly, the printing raw materials can be uniformly and stably laid on the printing substrate to improve the printing precision.

[0006] In order to achieve the above purpose, the technical scheme of the application is as follows:

[0007] A composite material manufacturing device for space environment, comprising a controller, a support frame, a work platform and a light etching assembly, the light etching assembly is installed on the support frame, an adsorption assembly for cleaning the printing material is installed on the support frame, the work platform is in the movement track of the light etching assembly and the adsorption assembly, the adsorption assembly, the light etching assembly and the work platform are electrically connected with the controller;

[0008] The work platform comprises a workbench, the top of the workbench is provided with a work groove, the two inner side walls of the work groove in the length direction are fixedly connected with a plurality of slide rails, the work groove is provided with a feeding assembly in sliding fit with the slide rails, the bottom of the work groove is respectively provided with a printing groove and a plurality of storage grooves along the width direction, the bottom of the printing groove is fixedly connected with a first telescopic rod, the top of the first telescopic rod is fixedly connected with a work plate, the work plate is in sliding fit with the printing groove, and a plurality of first electromagnets are uniformly arranged in the work plate and electrically connected with the controller.

[0009] The principle of the basic scheme is that the support frame supports and fixes the light etching assembly and plays a positioning role, the adsorption assembly cleans and classifies the printing material in the work groove and recycles it, the feeding assembly lays the magnetic raw material powder for 3D additive printing on the work plate, the first electromagnet stabilizes the powder in the printing area, and then the light etching assembly solidifies or sintering processes the powder.

[0010] The beneficial effects of the basic scheme are: 1. The magnetic metal powder or other magnetic powder for 3D printing is adsorbed on the work plate by the first electromagnet, thereby reducing the possibility that the powder is extremely unstable in the space microgravity environment.

[0011] 2. The design of the adsorption assembly can clean and recycle the unused powder at the end of printing, thereby saving costs and reducing the burden of manual cleaning; and when a plurality of materials are stacked and printed in turn, the material of the previous type is cleaned to facilitate the placement of the material of the next type, thereby reducing the possibility of mixing different materials.

[0012] 3. The design of the feeding assembly and the first telescopic rod ensures that the powder can be continuously laid after each layer of powder is printed, and at the same time ensures that the height of the stacked powder is always equal to or lower than the bottom end of the work groove, thereby ensuring that the stacked powder in the printing groove does not spread to the surrounding area.

[0013] Further, the light etching assembly comprises a first mechanical arm and a laser emitter, the first mechanical arm is detachably connected with the laser emitter, and the first mechanical arm and the laser emitter are electrically connected with the controller.

[0014] The beneficial effect of the basic scheme is: through the multi-degree-of-freedom rotation of the first mechanical arm, the pose of the laser emitter on the hand in space is adjusted, so that the laser emitter can accurately complete the production of the required component; the laser emitter performs laser curing or sintering on the powder layer to complete the corresponding printed object.

[0015] Further, the adsorption assembly comprises a second mechanical arm and a negative pressure machine, the negative pressure machine is communicated with the suction pipe at the input end, the second mechanical arm is detachably connected with the suction pipe at the bottom, and the negative pressure machine is communicated with the recovery assembly at the output end.

[0016] The beneficial effect of the basic scheme is: through the multi-degree-of-freedom rotation of the second mechanical arm, the pose of the suction pipe on the hand in space is adjusted, and the dust raw materials in the printing tank are cleaned through the negative pressure generated by the negative pressure machine.

[0017] Further, the feeding assembly comprises a moving block and a plurality of servo motors, the servo motors are located inside the moving block, a plurality of sliding grooves corresponding to the sliding rails are formed on both sides of the length direction of the moving block, a plurality of driven wheels and a plurality of drive wheels driven by the servo motors are rotatably connected to the top and the bottom of the sliding grooves respectively, and the servo motors are electrically connected with the controller; a recess is formed in the bottom of the moving block, a second telescopic rod is fixedly connected to the top wall in the recess, a feeding plate is fixedly connected to the lower end of the second telescopic rod, a plurality of second electromagnets are uniformly arranged in the feeding plate, and the second electromagnets are electrically connected with the controller.

[0018] The beneficial effect of the basic scheme is: through the rolling cooperation between the sliding rails and the drive wheels and the driven wheels in the sliding grooves, the moving block can move along the sliding rails, and the moving block can be accurately controlled by the servo motors to move to the positions corresponding to the printing tank and the storage tank; the feeding plate is raised or lowered by the second telescopic rod, and the powder feeding and discharging are completed by the opening and closing of the second electromagnets.

[0019] Further, the bottom of the storage tank is fixedly connected with a storage plate, and the bottom of the storage plate is arrayed with a first magnetic attraction layer, and the first magnetic attraction layer is electrically connected with the controller.

[0020] The beneficial effect of the basic scheme is: the materials needed for printing are put into the storage tank, which facilitates continuous paving, and the materials in the storage tank are stabilized in the storage tank by the magnetic attraction layer, so as to avoid the random scattering of the printing powder in the microgravity environment and affect the normal work of other components.

[0021] Further, the controller adopts pulse control of the first electromagnet.

[0022] The beneficial effect of the basic scheme is: by adjusting the pulse parameters (width, frequency and amplitude), the magnetic force of the first electromagnet is adjusted, so as to complete the printing stability, cleaning and recycling of the subsequent raw materials.

[0023] Further, the length and width of the feeding plate, the working plate and the storage plate are equal.

[0024] The beneficial effect of the basic scheme is that the design of equal length and width of the feeding plate, the working plate and the storage plate can ensure that the powder is evenly laid on the working plate each time, thereby improving the printing accuracy.

[0025] Further, the controller controls the laser emitter in a pulse mode.

[0026] The beneficial effect of the basic scheme is that the laser emitter is controlled in a pulse mode, so that the printing of the powder in the specified area can be more accurate and faster, thereby ensuring the integrity and accuracy of the final product, and reducing the waste of raw materials and saving costs.

[0027] Further, the diameter of the suction pipe near the second mechanical arm is greater than the diameter of the suction pipe near the negative pressure machine.

[0028] The beneficial effect of the basic scheme is that the diameter of the suction pipe near the second mechanical arm is greater than the diameter of the suction pipe near the negative pressure machine, which can facilitate the powder adsorption and cleaning of some small areas, improve the powder recovery efficiency, and save costs.

[0029] Further, the recovery assembly comprises a reversing valve in communication with the output end of the negative pressure machine, the reversing valve is in communication with a plurality of recovery tanks, the inner walls of the recovery tanks are each provided with a second magnetic attraction layer, and the second magnetic attraction layers are each electrically connected with the controller.

[0030] The beneficial effect of the basic scheme is that the negative pressure generated by the negative pressure machine can suck the powder that needs to be recovered and cleaned into the recovery tank, and based on the type of the used material, the reversing valve can classify the powder into the corresponding recovery tank, and then the second magnetic attraction layer can accumulate the recovered powder in the recovery tank, thereby reducing the possibility of the powder being randomly scattered and difficult to handle in the microgravity environment. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a perspective view of the composite material manufacturing equipment facing the space environment in the embodiment.

[0032] Figure 2 It is a front view of the working platform of the composite material manufacturing equipment facing the space environment in the embodiment.

[0033] Figure 3 It is a front view of the feeding assembly of the composite material manufacturing equipment facing the space environment in the embodiment.

[0034] Figure 4 It is a front view of the recovery assembly of the composite material manufacturing equipment facing the space environment in the embodiment.

[0035] List of reference signs:

[0036] 1, support frame; 2, second mechanical arm; 3, workbench; 4, moving block; 5, sliding rail; 6, laser emitter; 7, first mechanical arm; 8, work tank; 9, printing tank; 10, work plate; 11, first electromagnet; 12, first telescopic rod; 13, storage tank; 14, storage plate; 15, first magnetic layer; 16, driving wheel; 17, driven wheel; 18, second telescopic rod; 19, feeding plate; 20, second electromagnet; 21, recovery tank; 22, second magnetic layer; 23, reversing valve. DETAILED DESCRIPTION

[0037] The present application will be further clarified by the following examples, which should not be construed as limiting the scope of the present application. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" as used in the following description refer to directions in the drawings and the terms "inner" and "outer" refer to directions toward or away from the geometric center of the relevant component. Example 1

[0038] As shown in Figs. 1-3: a composite material manufacturing device for space environment, comprising a controller, a support frame 1, a work platform and a photoetching assembly for curing printing material, the photoetching assembly is installed on the support frame 1, the support frame 1 is installed with an adsorption assembly for cleaning the printing material, the work platform is within the movement track of the photoetching assembly and the adsorption assembly, and the adsorption assembly, the photoetching assembly and the work platform are electrically connected with the controller. Figure 1 Figure 2 Figure 3 Figure 4 As shown in Figs. 1-3: a composite material manufacturing device for space environment, comprising a controller, a support frame 1, a work platform and a photoetching assembly for curing printing material, the photoetching assembly is installed on the support frame 1, the support frame 1 is installed with an adsorption assembly for cleaning the printing material, the work platform is within the movement track of the photoetching assembly and the adsorption assembly, and the adsorption assembly, the photoetching assembly and the work platform are electrically connected with the controller.

[0039] The work platform comprises a workbench 3, the top of the workbench 3 is provided with a work tank 8, the length direction of the work tank 8 is provided with a plurality of sliding rails 5 which are fixedly connected to the inner side walls of the work tank 8 by screws, the work tank 8 is provided with a feeding assembly which is in sliding cooperation with the sliding rails 5, the bottom of the work tank 8 is provided with a printing tank 9 and a plurality of storage tanks 13 along the width direction of the work tank 8, the bottom of each storage tank 13 is provided with a storage plate 14 which is fixedly connected to the storage tank 13 by adhesion, the bottom of each storage plate 14 is provided with a first magnetic layer 15 which is arranged in an array, the first magnetic layer 15 is electrically connected with the controller, the bottom of the printing tank 9 is provided with a first telescopic rod 12 which is fixedly connected to the printing tank 9 by a screw, the top of the first telescopic rod 12 is provided with a work plate 10 which is in sliding cooperation with the printing tank 9, the inside of the work plate 10 is provided with a plurality of first electromagnets 11 which are evenly arranged, the first electromagnets 11 are electrically connected with the controller, and the controller is used to pulse control the first electromagnets 11.

[0040] ​​​The photoetching assembly comprises a first mechanical arm 7 and a laser emitter 6; the first mechanical arm 7 is screw-connected with the laser emitter 6; the first mechanical arm 7 and the laser emitter 6 are electrically connected with a controller; the controller controls the laser emitter 6 in a pulse mode.

[0041] The adsorption assembly comprises a second mechanical arm 2 and a negative pressure machine; the negative pressure machine is communicated with a suction pipe at an input end; the second mechanical arm 2 is screw-connected with the suction pipe at a bottom; the negative pressure machine is communicated with a recovery assembly at an output end; the second mechanical arm 2 and the negative pressure machine are electrically connected with a controller.

[0042] The discharging assembly comprises a moving block 4 and a plurality of servo motors; the servo motors are located inside the moving block 4; the moving block 4 is provided with a plurality of sliding grooves corresponding to the sliding rails 5 at two sides in a length direction; a plurality of driven wheels 17 and a plurality of drive wheels 16 driven by the servo motors are respectively rotationally connected to a top and a bottom of the sliding grooves; the servo motors are electrically connected with a controller; the moving block 4 is provided with a recess at a bottom; a second telescopic rod 18 is screw-fixedly connected to a top wall of the recess; a discharging plate 19 is screw-fixedly connected to a lower end of the second telescopic rod 18; a plurality of second electromagnets 20 are uniformly arranged inside the discharging plate 19; the second electromagnets 20 are electrically connected with the controller.

[0043] The recovery assembly comprises a reversing valve 23 communicated with the negative pressure machine at an output end; a plurality of recovery tanks 21 are communicated with the reversing valve 23; a second magnetic attraction layer 22 is arranged on an inner wall of each of the recovery tanks 21; the second magnetic attraction layer 22 is electrically connected with the controller.

[0044] The specific implementation process is as follows. First, a powder raw material to be subjected to 3D printing is placed in a corresponding storage tank 13; due to the microgravity environment, the powder raw material is not constrained and will float in the storage tank 13; and slight air flow will make the powder spread and escape from the storage tank 13; even the scattered magnetic powder will affect the normal operation of other components; and due to the movement of the moving block 4 and the discharging plate 19 during the work process, the air above the storage tank 13 will flow greatly, which will also drive the air flow above the storage tank 13 to make the printing powder raw material escape; thus, the magnetic powder raw material is adsorbed and accumulated in the storage tank 13 by the first magnetic attraction layer 15, thereby ensuring the normal operation of the magnetic powder 3D printing and the stability of the device.

[0045] Then the controller controls the servo motor to rotate, so that the driving wheel 16 and the driven wheel 17 slide along the slide rail 5, and then the moving block 4 moves to the top of the storage tank 13. Then the controller controls the second telescopic rod 18 to move, so that the discharge plate 19 lightly presses the magnetic powder, ensuring that the top of the accumulated powder is parallel to the bottom end of the discharge plate 19, so that the subsequent adsorption can uniformly adsorb the magnetic powder at the bottom end of the discharge plate 19. Then the discharge plate 19 is lifted to be spaced apart from the top of the accumulated powder by 1-2 cm, and then the second electromagnet 20 is started, and the magnetic force of the second electromagnet 20 and the first magnetic layer 15 is controlled by the controller to ensure that the discharge plate 19 can uniformly adsorb 10-30 microns of magnetic powder.

[0046] After the raw material adsorption is completed, the controller controls the servo motor to move the moving block 4 to the top of the workbench 10, and then moves the discharge plate 19 to be spaced apart from the workbench 10 or the top of the dust pile by 1-2 cm through the second telescopic rod 18, and moves the workbench 10 through the first telescopic rod 12 to control the controller, so that the discharge plate 19 discharges each time in the printing slot 9, thereby improving the uniformity of the dust laying; then the first magnetic layer 15 is closed, and the pulse parameters (frequency, amplitude, width) of the first electromagnet 11 are adjusted to make the magnetic force of the first electromagnet 11 increase instantaneously, so that the magnetic powder on the discharge plate 19 is quickly and uniformly adsorbed on the surface of the workbench 10, thereby improving the accuracy of subsequent printing. In the process of printing layer by layer, the controller also controls the magnetic force of the first electromagnet 11 to gradually increase, so as to ensure that the magnetic attraction of the first electromagnet 11 to the top of the accumulated powder in the printing slot 9 is always greater than that of the first magnetic layer 15, thereby ensuring that the top of the accumulated magnetic powder in the printing slot 9 does not shift during printing, thereby ensuring the accuracy of the final product.

[0047] After the magnetic powder is uniformly and stably laid on the workbench 10, the first mechanical arm 7 is controlled to move by the controller based on the preset 3D printing model data, so as to adjust the pose of the first mechanical arm 7 hand laser emitter 6, and the laser emitter 6 is pulsed controlled by the controller, so as to ensure that the laser emitter 6 can quickly and accurately irradiate and solidify or sinter the corresponding area, thereby reducing material waste.

[0048] When different materials are needed to be used to composite print the printing member, the magnetic powder raw materials or the raw material powders subjected to magnetization treatment are respectively put into the corresponding storage grooves 13, and the powders are accumulated in the storage grooves 13 by the first magnetic attraction layer 15, and the accumulated powders are flattened one by one by the discharging plate 19 to ensure that the powders can be uniformly adsorbed subsequently. Since the excess materials after printing need to be recycled, when multiple materials are printed, the previous printing material needs to be cleaned and recycled, and then the subsequent powder material is added to ensure that the different materials are mixed to facilitate subsequent use. Therefore, after the printing of one material is completed, the controller controls the movement of the second mechanical arm 2 to move the suction pipe of the second mechanical arm 2 hand to the printing groove 9, and starts the negative pressure machine to suck the powders in the printing groove 9. Since the negative pressure machine is in communication with the recovery tank 21, the sucked powders will enter the corresponding recovery tank 21, and the powders are limited in the recovery tank 21 by the second magnetic attraction layer 22. Then the magnetic force of the second electromagnet 20 in the discharging plate 19 is increased to increase the amount of the next powder material adsorbed by the discharging plate 19, and then the discharging plate 19 quickly fills the next powder into the printing groove 9 until the accumulated powders are parallel to the last plane of the previous material printing, and then the subsequent printing is started to complete the composite 3D printing of multiple materials.

[0049] At the same time, when multiple materials are printed, in order to avoid that the different materials are mixed after being cleaned and recycled, the controller controls the reversing valve 23 to connect the negative pressure machine and the corresponding recovery tank 21 to avoid the mixing of different materials during recycling. Embodiment 2

[0050] The difference from the above embodiment is that, as shown in the accompanying drawings, the length and width of the discharging plate 19, the working plate 10 and the storage plate 14 are all equal. Figure 3 and Figure 4 The length and width of the discharging plate 19, the working plate 10 and the storage plate 14 are all equal.

[0051] The specific implementation process is as follows: since the length and width of the discharging plate 19 and the storage plate 14 are all equal, and when the discharging plate 19 moves to the position directly above the storage plate 14 and coincides with the storage plate 14, the discharging plate 19 can uniformly adsorb the magnetic powder raw materials in the storage groove 13 on the bottom of the discharging plate 19, and then moves to the position directly above the working plate 10 and coincides with the working plate 10 to discharge, thereby ensuring that the powders are uniformly laid on the working plate 10 to ensure the printing accuracy; at the same time, it can also avoid that part of the powders are adsorbed through the gap between the discharging plate 19 and the storage groove 13 around the height direction of the discharging plate 19, thereby reducing the possibility of affecting the uniformity of the powders laid in the printing groove 9 subsequently. Embodiment 3

[0052] The difference from the above embodiment is that, as shown in the accompanying drawings, the length and width of the discharging plate 19, the working plate 10 and the storage plate 14 are all equal. Figure 2As shown: the diameter of the end of the suction pipe close to the second mechanical arm 2 is larger than the diameter of the end of the suction pipe close to the negative pressure machine.

[0053] The specific implementation process is as follows: since the structure of some printing components is relatively complex, the powder in some areas is not convenient to clean when the powder is cleaned and recycled, so the diameter of the end of the suction pipe close to the second mechanical arm 2 is larger than the diameter of the end of the suction pipe close to the negative pressure machine, which can ensure that the powder can be adsorbed, and the dust in some narrow areas can also be adsorbed and recycled.

[0054] The technical means disclosed in the scheme of the application are not limited to the technical means disclosed in the above-mentioned embodiments, and also include technical solutions composed of any combination of the above technical features.

Claims

1. A composite material manufacturing apparatus oriented to a space environment, characterized by: The application relates to a printing device, which comprises a controller, a support frame (1), a working platform and a photoetching assembly for solidifying printing materials, the photoetching assembly is installed on the support frame (1), a suction assembly for cleaning the printing materials is installed on the support frame (1), the working platform is located in the movement track of the photoetching assembly and the suction assembly, and the suction assembly, the photoetching assembly and the working platform are electrically connected with the controller; the working platform comprises a workbench (3), a working groove (8) is formed in the top of the workbench (3), a plurality of slide rails (5) are fixedly connected to the two inner side walls of the working groove (8) in the length direction, a feeding assembly is arranged in the working groove (8) and is in sliding fit with the slide rails (5), a printing groove (9) and a plurality of storage grooves (13) are arranged at the bottom of the working groove (8) in the width direction, a first telescopic rod (12) is fixedly connected to the bottom of the printing groove (9), a working plate (10) is fixedly connected to the top of the first telescopic rod (12), the working plate (10) is in sliding fit with the printing groove (9), a plurality of first electromagnets (11) are evenly arranged in the working plate (10), and the first electromagnets (11) are electrically connected with the controller; the feeding assembly comprises a moving block (4) and a plurality of servo motors, a plurality of sliding grooves corresponding to the slide rails (5) are formed in the length direction of the two sides of the moving block (4), a plurality of driven wheels (17) and a plurality of drive wheels (16) driven by the servo motors are rotatably connected to the top and the bottom of the sliding grooves respectively, and the servo motors are electrically connected with the controller; a recess is formed in the bottom of the moving block (4), a second telescopic rod (18) is fixedly connected to the top wall of the recess, a feeding plate (19) is fixedly connected to the lower end of the second telescopic rod (18), a plurality of second electromagnets (20) are evenly arranged in the feeding plate (19), and the second electromagnets (20) are electrically connected with the controller; the bottom of each storage groove (13) is fixedly connected with a storage plate (14), the bottom of each storage plate (14) is arrayed with a first magnetic attraction layer (15), and the first magnetic attraction layer (15) is electrically connected with the controller.

2. The space environment facing composite manufacturing apparatus of claim 1, wherein: The photoetching assembly comprises a first mechanical arm (7) and a laser emitter (6), the first mechanical arm (7) is detachably connected with the laser emitter (6), and the first mechanical arm (7) and the laser emitter (6) are electrically connected with the controller.

3. The space environment facing composite manufacturing apparatus of claim 1, wherein: The suction assembly comprises a second mechanical arm (2) and a negative pressure machine, a suction pipe is communicated with the input end of the negative pressure machine, the bottom of the second mechanical arm (2) is detachably connected with the suction pipe, a recovery assembly is communicated with the output end of the negative pressure machine, and the second mechanical arm (2) and the negative pressure machine are electrically connected with the controller.

4. The space environment facing composite manufacturing apparatus of claim 1, wherein: The controller adopts pulse control on the first electromagnet (11).

5. The space environment facing composite manufacturing apparatus of claim 1, wherein: The length and the width of the feeding plate (19), the working plate (10) and the storage plate (14) are equal.

6. The space environment facing composite manufacturing apparatus of claim 2, wherein: The controller adopts pulse control on the laser emitter (6).

7. The space environment facing composite manufacturing apparatus of claim 3, wherein: The diameter of the suction pipe close to the second mechanical arm (2) is larger than that of the suction pipe close to the negative pressure machine.

8. The space environment facing composite manufacturing apparatus of claim 1, wherein: The recovery assembly comprises a reversing valve (23) communicated with the output end of the negative pressure machine, a plurality of recovery tanks (21) are communicated with the reversing valve (23), second magnetic attraction layers (22) are arranged on the inner walls of the recovery tanks (21), and the second magnetic attraction layers (22) are electrically connected with the controller.

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