Composite material forming device in vacuum environment and working method thereof

Abstract

The application provides a composite material forming device and working method in a vacuum environment, comprising: a vacuum simulation cabin, a feeding device, a moving mechanism, a lifting mechanism, a mold and a bearing platform vehicle; the feeding device, the moving mechanism, the lifting mechanism, the mold and the bearing platform vehicle are installed in the vacuum simulation cabin; the moving mechanism, the lifting mechanism and the mold are installed on the bearing platform vehicle, the feeding device is installed on the moving mechanism and is driven to move by the moving mechanism, and a product is placed on the mold by being driven to move by the lifting mechanism. The application concentrates the functions of a forming device required for forming an antenna reflector plate composite material and a vacuum baking and degassing device required for stabilizing a product into a set of forming devices, thereby saving equipment floor space.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of composite material forming, in particular to a composite material forming device and working method in a vacuum environment. BACKGROUND

[0002] The spaceborne antenna reflector is the main structure for realizing the communication function of a spacecraft. In order to ensure the communication quality, the antenna reflector generally adopts a lightweight design to improve the mass ratio of the load in the total mass of the spacecraft and improve the utilization rate of the effective load. Meanwhile, in order to meet the high profile precision requirement of the antenna reflecting surface, the reflector should have sufficient rigidity to avoid the profile deformation from affecting the reflecting surface precision. The fiber-reinforced resin-based composite material is widely used in the spaceborne antenna reflector panel in China due to its high strength, light weight, small profile deformation when bearing alternating thermal load and other advantages.

[0003] At present, the commonly used preparation process of the spaceborne antenna reflector panel is to first manufacture a product preform and a corresponding forming mold, the mold profile is designed according to the product use surface profile, then the product preform is fixed and shaped on the mold profile through a vacuum bag pressing, after waiting for the solidification to be completed, the mold is removed to obtain the product reflecting plate. Since the resin-based composite material will release small molecules under the high temperature and high vacuum condition of the space environment, causing the product to be unstable and polluting other spaceborne elements, therefore the obtained product reflecting plate still needs to be transferred to a special vacuum baking and degassing equipment for stabilization treatment under high temperature and high vacuum, so as to obtain the final product.

[0004] The spaceborne antenna reflector panel is a large-size plate-shell structure, and a large planar space is required. The above process needs to respectively configure a forming equipment for vacuum bag pressing and a vacuum baking and degassing equipment for stabilization treatment, both of which need to occupy a large amount of site space. Meanwhile, the product needs to be transferred between the two sets of equipment, when the product needs to be transferred, the vacuum environment of the forming equipment needs to be broken to take out the product, then the product is transferred in the atmospheric environment, and then is put into the vacuum baking and degassing equipment to re-evacuate, the whole process cycle is long, and needs to go through the pressure environment change of vacuum-atmosphere-vacuum, which is not conducive to the stability of the product itself. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a composite material forming device and working method in a vacuum environment.

[0006] According to the composite material forming device in a vacuum environment provided by the present application, the vacuum simulation cabin, the feeding device, the motion mechanism, the lifting mechanism, the mold and the bearing platform vehicle are provided.

[0007] The feeding device, the motion mechanism, the lifting mechanism, the mold and the bearing platform vehicle are installed in the vacuum simulation cabin.

[0008] The motion mechanism, the lifting mechanism and the mold are installed on the carrying platform vehicle, the feeding device is installed on the motion mechanism and is driven to move by the motion mechanism, and the product is placed on the mold by being driven to move by the lifting mechanism.

[0009] Preferably, the vacuum simulation cabin comprises a vacuum container, a heating cover and a carrying platform vehicle guide rail.

[0010] The heating cover and the carrying platform vehicle guide rail are installed in the vacuum container, and the carrying platform vehicle is arranged on the carrying platform vehicle guide rail.

[0011] Preferably, the carrying platform vehicle comprises a bottom frame, a vertical frame and a bottom wheel set.

[0012] The vertical frame and the bottom wheel set are installed on the bottom frame, and the bottom frame is connected with the carrying platform vehicle guide rail in a sliding fit through the bottom wheel set.

[0013] Preferably, the lifting mechanism comprises a frame, a lifting tool, a turbine screw lifter, a universal coupling transmission rod, a gear box reverser, a lifting motion vacuum servo motor and a lifting motion sliding block.

[0014] The frame is fixedly connected with the turbine screw lifter, the lifting motion sliding block is slidingly installed on the frame, and the lifting tool is connected with the lifting motion sliding block.

[0015] The lifting motion vacuum servo motor is connected with the gear box reverser in an output end, the gear box reverser is connected with the turbine screw lifter in an input end through the universal coupling transmission rod, and the turbine screw lifter is connected with and drives the lifting motion sliding block to move in an output end.

[0016] Preferably, the lifting mechanism is installed on the vertical frame, and the product is installed on the lifting tool.

[0017] Preferably, the motion mechanism comprises a longitudinal motion vacuum servo motor, a longitudinal motion linear module, a longitudinal motion sliding block, a support column, a transverse motion vacuum servo motor, a transverse motion sliding block and a transverse motion linear module.

[0018] The transverse motion linear module is installed on the bottom frame, the transverse motion vacuum servo motor is installed on the transverse motion linear module, the transverse motion sliding block is connected with the transverse motion linear module in a sliding fit, and the transverse motion vacuum servo motor is connected with and drives the transverse motion sliding block to move.

[0019] The support column is mounted on the transverse motion slider, the longitudinal motion linear module is mounted on the support column, the longitudinal motion vacuum servo motor is mounted on the longitudinal motion linear module, the longitudinal motion slider is slidingly connected to the longitudinal motion linear module, and the longitudinal motion vacuum servo motor is connected to and drives the longitudinal motion slider to move.

[0020] Preferably, the feeding device comprises a raw material barrel, a solenoid valve, a nozzle, a material guide hose and a barrel clamping mechanism.

[0021] The raw material barrel and the nozzle are fixedly mounted on the barrel clamping mechanism, the solenoid valve is arranged between the raw material barrel and the nozzle, and the solenoid valve is connected to the raw material barrel and the nozzle through the material guide hose at both ends.

[0022] Preferably, the mold is mounted on the bottom frame.

[0023] Preferably, a groove is arranged on the mold, and the outlet of the nozzle covers the groove through the movement trajectory of the movement mechanism.

[0024] Preferably, a working method of the composite material forming device in the vacuum environment comprises the following steps:

[0025] Step S1, the raw material prepared in advance is loaded into the feeding device, the feeding device is mounted on the movement mechanism, the mold is mounted on the bearing platform vehicle, the product is placed in the groove of the mold, the lifting mechanism is connected to the product, and after all components are assembled on the bearing platform vehicle, the whole is pushed into the vacuum simulation cabin, the door is closed, and the vacuum simulation cabin starts to work.

[0026] Step S2, after the vacuum simulation cabin reaches a working vacuum degree of less than or equal to 1x10 -3 Pa, the lifting mechanism drives the product to rise to a position higher than the feeding device.

[0027] Step S3, the movement mechanism drives the feeding device to move, the solenoid valve of the feeding device is opened at the same time, the feeding device starts to discharge, the raw material is coated into the groove of the mold, and after the coating is completed, the movement mechanism drives the feeding device to return to the initial parking position.

[0028] Step S4, the lifting mechanism drives the product to descend into the groove of the mold, and the mold closing is completed.

[0029] Step S5, the vacuum simulation cabin is heated to 150 DEG C by the heating cover of the vacuum simulation cabin, after the raw material is solidified on the product, the lifting mechanism drives the product to rise, the demolding is completed, and the heating temperature of 150 DEG C is continued to maintain to bake and degas;

[0030] Step S6, after baking is completed, the heating cover of the vacuum simulation cabin is closed, after the vacuum simulation cabin returns to room temperature, the vacuum simulation cabin is re-pressurized, is opened after re-pressurization to atmosphere, the carrying platform car and all components on the carrying platform car are taken out integrally, and finally the product is taken down.

[0031] Compared with the prior art, the application has the beneficial effects as follows:

[0032] 1, the application is by the forming equipment required for the antenna reflector composite material forming and the function of the vacuum baking and degassing equipment required for the product stabilization treatment is concentrated to a set of forming device, the equipment occupies the space is saved;

[0033] 2, the application is by the composite material forming process and the product stabilization treatment process are concentrated to a set of forming device and are carried out, the intermediate transfer process of the product and the time required for re-evacuation of equipment are reduced, and the preparation period of the antenna reflector product is shortened;

[0034] 3, the application is by the forming process of the composite material, including the whole process control from coating, moulding, curing, demolding to baking and degassing, is continuously carried out in the same vacuum environment, the product is avoided to expose atmosphere in the intermediate transfer process, and in the whole process, the product is kept in the vacuum state of 1x10 -3 Pa, the time required for the product vacuum baking and degassing process is reduced, and the stability of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings:

[0036] Figure 1 It is the schematic diagram of the overall structure of the composite material forming device;

[0037] Figure 2 It is the schematic diagram of the structure of the vacuum simulation cabin;

[0038] Figure 3 It is the schematic diagram of the structure of the feeding device;

[0039] Figure 4 It is the schematic diagram of the structure of the motion mechanism;

[0040] Figure 5 It is the schematic diagram of the structure of the lifting mechanism;

[0041] Figure 6 This is a structural diagram;

[0042] As shown in the figure:

[0043]

[0044] Detailed Implementation

[0045] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0046] Example 1

[0047] like Figure 1 As shown, this embodiment includes: a vacuum simulation chamber 1, a feeding device 2, a motion mechanism 3, a lifting mechanism 4, a mold 6, and a carrying platform 7; the feeding device 2, the motion mechanism 3, the lifting mechanism 4, the mold 6, and the carrying platform 7 are installed inside the vacuum simulation chamber 1; the motion mechanism 3, the lifting mechanism 4, and the mold 6 are installed on the carrying platform 7, the feeding device 2 is installed on the motion mechanism 3 and moved by the motion mechanism 3, and the product 5 is moved by the lifting mechanism 4 and placed on the mold 6.

[0048] like Figure 2 As shown, the vacuum simulation chamber 1 includes: a vacuum container 101, a heating cover 102, and a carrier platform trolley rail 103; the heating cover 102 and the carrier platform trolley rail 103 are installed inside the vacuum container 101, and the carrier platform trolley 7 is placed on the carrier platform trolley rail 103.

[0049] like Figure 3 As shown, the feeding device 2 includes: a raw material barrel 201, a solenoid valve 202, a nozzle 203, a guide hose 204, and a barrel clamping mechanism 205. The raw material barrel 201 and the nozzle 203 are fixedly mounted on the barrel clamping mechanism 205. The solenoid valve 202 is provided between the raw material barrel 201 and the nozzle 203. The two ends of the solenoid valve 202 are connected to the raw material barrel 201 and the nozzle 203 respectively through the guide hose 204. A groove is provided on the mold 6, and the outlet of the nozzle 203 covers the groove through the movement trajectory of the motion mechanism 3.

[0050] like Figure 4As shown, the moving mechanism 3 comprises: a longitudinal moving vacuum servo motor 301, a longitudinal moving linear module 302, a longitudinal moving slider 303, a support column 304, a transverse moving vacuum servo motor 305, a transverse moving slider 306, and a transverse moving linear module 307; the transverse moving linear module 307 is installed on the bottom frame 701, the transverse moving vacuum servo motor 305 is installed on the transverse moving linear module 307, the transverse moving slider 306 is slidingly connected to the transverse moving linear module 307, and the transverse moving vacuum servo motor 305 is connected to and drives the transverse moving slider 306 to move; the support column 304 is installed on the transverse moving slider 306, the longitudinal moving linear module 302 is installed on the support column 304, the longitudinal moving vacuum servo motor 301 is installed on the longitudinal moving linear module 302, the longitudinal moving slider 303 is slidingly connected to the longitudinal moving linear module 302, and the longitudinal moving vacuum servo motor 301 is connected to and drives the longitudinal moving slider 303 to move; the feeding device 2 is installed on the longitudinal moving slider 303.

[0051] As shown in Figure 5 , the lifting mechanism 4 comprises: a frame 401, a lifting tool 402, a worm screw lifter 403, a universal coupling transmission rod 404, a gear box reverser 405, a lifting moving vacuum servo motor 406, and a lifting moving slider 407; the frame 401 is fixedly connected to the worm screw lifter 403, the lifting moving slider 407 is slidingly installed on the frame 401, and the lifting tool 402 is connected to the lifting moving slider 407; the output end of the lifting moving vacuum servo motor 406 is connected to the gear box reverser 405, the gear box reverser 405 is connected to the input end of the worm screw lifter 403 through the universal coupling transmission rod 404, and the output end of the worm screw lifter 403 is connected to and drives the lifting moving slider 407 to move.

[0052] As shown in Figure 6 , the carrying platform vehicle 7 comprises: a bottom frame 701, a vertical frame 702, and a bottom wheel set 703; the vertical frame 702 and the bottom wheel set 703 are installed on the bottom frame 701, and the bottom frame 701 is slidingly connected to the carrying platform vehicle guide rail 103 through the bottom wheel set 703. The lifting mechanism 4 is installed on the vertical frame 702, the product 5 is installed on the lifting tool 402, and the mold 6 is installed on the bottom frame 701.

[0053] The embodiment also provides a working method of the composite material forming device in a vacuum environment, comprising the following steps:

[0054] Step S1, the raw materials prepared in advance are loaded into the feeding device 2, the feeding device 2 is installed on the moving mechanism 3, the mold 6 is installed on the carrying platform vehicle 7, the product 5 is placed in the groove of the mold 6, the lifting mechanism 4 is connected with the product 5, and after all the components are assembled on the carrying platform vehicle 7, the whole is pushed into the vacuum simulation cabin 1, the door is closed, and the vacuum simulation cabin 1 starts to work;

[0055] Step S2, the vacuum simulation cabin 1 reaches a vacuum degree less than or equal to 1x10 -3 Pa, and the lifting mechanism 4 drives the product 5 to rise to a position higher than the feeding device 2;

[0056] Step S3, the moving mechanism 3 drives the feeding device 2 to move, and at the same time, the electromagnetic valve 202 of the feeding device 2 is opened, the feeding device 2 starts to discharge, the raw materials are coated into the groove of the mold 6, after the coating is completed, the moving mechanism 3 drives the feeding device 2 to return to the initial parking position;

[0057] Step S4, the lifting mechanism 4 drives the product 5 to descend into the groove of the mold 6, and the mold closing is completed;

[0058] Step S5, the heating cover 102 of the vacuum simulation cabin 1 is used to heat the vacuum simulation cabin 1 to 150℃, after the raw materials are solidified on the product 5, the lifting mechanism 4 drives the product 5 to rise, the demolding is completed, and at the same time, the heating temperature of 150℃ is continued to maintain for baking and degassing;

[0059] Step S6, after the baking is completed, the heating cover 102 of the vacuum simulation cabin 1 is closed, after the vacuum simulation cabin 1 returns to room temperature, the vacuum simulation cabin 1 is re-pressurized, the door is opened after the re-pressurization to the atmosphere, the carrying platform vehicle 7 and all the components thereon are taken out as a whole, and finally the product 5 is taken off.

[0060] Example 2

[0061] Example 2 is a preferred example of Example 1.

[0062] As shown in Figure 1 , the present embodiment includes: a vacuum simulation cabin 1, a feeding device 2, a moving mechanism 3, a lifting mechanism 4, and a carrying platform vehicle 7.

[0063] As shown in Figure 2 , the vacuum simulation cabin 1 includes: a vacuum container 101, a heating cover 102, and a carrying platform vehicle guide rail 103.

[0064] As shown in Figure 3 , the feeding device 2 includes: a raw material barrel 201, an electromagnetic valve 202, a nozzle 203, a material guide hose 204, and a barrel clamping mechanism 205.

[0065] As shown in Figure 4As shown, the motion mechanism 3 includes: a longitudinal motion vacuum servo motor 301, a longitudinal motion linear module 302, a longitudinal motion slider 303, a support column 304, a transverse motion vacuum servo motor 305, a transverse motion slider 306, and a transverse motion linear module 307.

[0066] like Figure 5 As shown, the lifting mechanism 4 includes: a frame 401, a lifting fixture 402, a worm gear screw jack 403, a universal coupling transmission rod 404, a gearbox commutator 405, a lifting motion vacuum servo motor 406, and a lifting motion slider 407.

[0067] like Figure 6 As shown, the carrier platform vehicle 7 includes: a bottom frame 701, a vertical frame 702, and a bottom wheel set 703.

[0068] The heating cover 102 and the guide rail 103 of the carrier platform are set inside the vacuum container 101. The raw material barrel 201 and the nozzle 203 are fixedly set on the barrel clamping mechanism 205. The solenoid valve 202 is set between the raw material barrel 201 and the nozzle 203. The two ends of the solenoid valve 202 are connected to the raw material barrel 201 and the nozzle 203 respectively through the material guide hose 204.

[0069] The longitudinal motion linear module 302 is driven by the longitudinal motion vacuum servo motor 301. The longitudinal motion slider 303 is mounted on the longitudinal motion linear module 302. Both ends of the longitudinal motion linear module 302 are fixedly connected to the support column 304. The support column 304 is connected to the transverse motion slider 306 by bolts. The transverse motion slider 306 is mounted on the transverse motion linear module 307. The transverse motion linear module 307 is driven by the transverse motion vacuum servo motor 305.

[0070] The worm gear screw jack 403 is fixedly connected to the frame 401. The lifting motion slider 407 is installed on the worm gear screw jack 403. The lifting fixture 402 is connected to the lifting motion slider 407. The worm gear screw jack 403 is connected to the gearbox commutator 405 through a universal coupling transmission rod 404. The lifting motion vacuum servo motor 406 is connected to the gearbox commutator 405. The lifting mechanism 4 is symmetrically arranged on the upper surface of the vertical frame 702 of the carrying platform vehicle 7. The lifting mechanism 4 is fixedly connected to the vertical frame 702. The lifting mechanism 4 is connected to the product 5 through the lifting fixture 402. The lifting motion vacuum servo motor 406 of the lifting mechanism 4 drives the worm gear screw jack 403 through the gearbox commutator 405 and the universal coupling transmission rod 404, thereby driving the product 5 to perform lifting motion.

[0071] The vertical frame 702 is connected with the bottom wheel set 703 and the bottom frame 701. The mold 6 is arranged on the bottom frame 701 of the carrying platform vehicle 7, and the upper surface of the mold 6 is provided with a groove corresponding to the product 5, and the product 5 can be placed in the groove on the upper surface of the mold 6.

[0072] The motion mechanism 3 is arranged on the bottom frame 701 of the carrying platform vehicle 7, and the feeding device 2 is arranged on the longitudinal motion sliding block 303 of the motion mechanism 3. The motion mechanism 3 drives the feeding device 2 to realize two-axis motion. The raw material barrel 201 of the feeding device 2 is filled with pre-prepared raw materials. The feeding device 2 controls the opening and closing of the electromagnetic valve 202 to control the discharging during the two-axis motion. When the electromagnetic valve 202 is opened, the raw materials pass through the raw material barrel 201, the material guide hose 204, the electromagnetic valve 202, the material guide hose 204 and the nozzle 203 under the action of negative pressure and gravity, and the outlet trajectory of the lower end of the nozzle 203 covers the groove on the upper surface of the mold 6, so that the raw materials are coated on the entire upper surface groove of the mold 6. The design of the material cylinder clamping mechanism 205 of the feeding device 2 enables the feeding device 2 to be adjusted in height within a range of ±60mm in the vertical direction.

[0073] The feeding device 2, the motion mechanism 3, the lifting mechanism 4, the product 5 and the mold 6 are pre-assembled on the carrying platform vehicle 7. The whole is pushed into the vacuum simulation cabin 1 through the bottom wheel set 703 of the carrying platform vehicle 7 and placed on the carrying platform vehicle guide rail 103.

[0074] The molding method realized by the composite material molding device in the vacuum environment of the embodiment includes the following steps:

[0075] Step one, fill the pre-prepared raw materials into the feeding device 2, install the feeding device 2 on the motion mechanism 3, install the mold 6 on the carrying platform vehicle 7, place the product 5 into the groove on the upper surface of the mold 6, connect the lifting mechanism 4 with the product 5, assemble all components on the carrying platform vehicle 7, and push the whole into the vacuum simulation cabin 1, close the cabin door, and start the vacuum simulation cabin 1 to work;

[0076] Step two, the vacuum simulation cabin 1 reaches the working vacuum degree, and the working vacuum degree is less than or equal to 1×10 -3 Pa, the lifting mechanism 4 drives the product 5 to rise to a position above the upper surface of the feeding device 2;

[0077] Step three, the motion mechanism 3 drives the feeding device 2 to move in two axes, at the same time, the electromagnetic valve 202 is opened, the feeding device 2 starts to discharge, and the raw materials are coated in the groove on the upper surface of the mold 6. After the coating is completed, the motion mechanism 3 drives the feeding device 2 to return to the initial parking position, which does not interfere with other components;

[0078] Step four, the lifting mechanism 4 drives the product 5 to descend into the groove on the upper surface of the mold 6, and the mold closing is completed;

[0079] Step five, the vacuum simulation cabin 1 is heated to 150 DEG C by the heating cover 102, after the raw material is solidified on the product, the lifting mechanism 4 drives the product 5 to rise, the demolding is completed, and meanwhile, the heating temperature of 150 DEG C is continuously maintained to carry out baking and degassing;

[0080] Step six, after the baking is completed, the heating cover 102 is closed, after the vacuum simulation cabin 1 returns to room temperature, the vacuum simulation cabin 1 is re-pressurized, the cabin door is opened after being re-pressurized to the atmosphere, the bearing platform vehicle 7 and all components thereon are integrally taken out, and finally the product 5 is taken down.

[0081] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on 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 do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0082] The specific embodiments of the present application are described above. It should be understood that the present application is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essential content of the present application. The embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other without conflict.

Claims

1. A composite material molding apparatus in a vacuum environment, characterized by comprising: The application relates to a vacuum simulation cabin (1), a feeding device (2), a moving mechanism (3), a lifting mechanism (4), a mould (6) and a bearing platform vehicle (7). The feeding device (2), the moving mechanism (3), the lifting mechanism (4), the mould (6) and the bearing platform vehicle (7) are installed in the vacuum simulation cabin (1). The moving mechanism (3), the lifting mechanism (4) and the mould (6) are installed on the bearing platform vehicle (7), the feeding device (2) is installed on the moving mechanism (3) and is driven to move by the moving mechanism (3), and a product (5) is placed on the mould (6) by being driven to move by the lifting mechanism (4). The lifting mechanism (4) comprises a lifting tool (402). The moving mechanism (3) comprises a transverse moving linear module (307). The vacuum simulation cabin (1) comprises a vacuum container (101), a heating cover (102) and a bearing platform vehicle guide rail (103). The heating cover (102) and the bearing platform vehicle guide rail (103) are installed in the vacuum container (101), and the bearing platform vehicle (7) is arranged on the bearing platform vehicle guide rail (103). The bearing platform vehicle (7) comprises a bottom frame (701), a vertical frame (702) and a bottom wheel set (703). The bottom frame (701) is provided with the vertical frame (702) and the bottom wheel set (703), and the bottom frame (701) is connected with the bearing platform vehicle guide rail (103) through the bottom wheel set (703). The transverse moving linear module (307) is installed on the bottom frame (701). The lifting mechanism (4) is installed on the vertical frame (702), and the product (5) is installed on the lifting tool (402). The mould (6) is installed on the bottom frame (701). The lifting mechanism (4) further comprises a frame (401), a turbine screw lifter (403), a universal coupling transmission rod (404), a gear box reverser (405), a lifting motion vacuum servo motor (406) and a lifting motion sliding block (407).

2. The device for molding a composite material in a vacuum environment according to claim 1, wherein The frame (401) is fixedly connected with the turbine screw lifter (403), the lifting motion sliding block (407) is slidably installed on the frame (401), and the lifting tool (402) is connected with the lifting motion sliding block (407). The lifting motion vacuum servo motor (406) is connected with the gear box reverser (405) at an output end, the gear box reverser (405) is connected with the turbine screw lifter (403) at an input end through the universal coupling transmission rod (404), and the turbine screw lifter (403) is connected with the lifting motion sliding block (407) at an output end and drives the lifting motion sliding block (407) to move. ​ 3. The device for molding a composite material in a vacuum environment according to claim 1, wherein The motion mechanism (3) further comprises: a longitudinal motion vacuum servo motor (301), a longitudinal motion linear module (302), a longitudinal motion slider (303), a support column (304), a transverse motion vacuum servo motor (305), a transverse motion slider (306); The transverse motion vacuum servo motor (305) is installed on the transverse motion linear module (307), the transverse motion slider (306) is slidably connected to the transverse motion linear module (307), and the transverse motion vacuum servo motor (305) is connected and drives the transverse motion slider (306) to move; The support column (304) is installed on the transverse motion slider (306), the longitudinal motion linear module (302) is installed on the support column (304), the longitudinal motion vacuum servo motor (301) is installed on the longitudinal motion linear module (302), the longitudinal motion slider (303) is slidably connected to the longitudinal motion linear module (302), and the longitudinal motion vacuum servo motor (301) is connected and drives the longitudinal motion slider (303) to move.

4. The device for molding a composite material in a vacuum environment according to claim 1, wherein The feeding device (2) comprises: a raw material barrel (201), an electromagnetic valve (202), a nozzle (203), a material guide hose (204), and a material cylinder clamping mechanism (205); The raw material barrel (201) and the nozzle (203) are fixedly installed on the material cylinder clamping mechanism (205), the electromagnetic valve (202) is arranged between the raw material barrel (201) and the nozzle (203), and the two ends of the electromagnetic valve (202) are respectively connected to the raw material barrel (201) and the nozzle (203) through the material guide hose (204).

5. The device for forming a composite material in a vacuum environment according to claim 4, wherein: A groove is arranged on the mold (6), and a movement trajectory formed by movement of the nozzle (203) outlet through the motion mechanism (3) covers the groove.

6. A method of operating a composite material forming apparatus in a vacuum environment as claimed in any one of claims 1 to 5, wherein, The method comprises the following steps: In step S1, the raw material prepared in advance is loaded into the feeding device (2), the feeding device (2) is installed on the motion mechanism (3), the mold (6) is installed on the bearing platform vehicle (7), the product (5) is placed in the groove of the mold (6), the lifting mechanism (4) is connected with the product (5), and after all components are assembled on the bearing platform vehicle (7), the whole is pushed into the vacuum simulation cabin (1), the door is closed, and the vacuum simulation cabin (1) starts to work; Step S2, the vacuum simulation cabin (1) reaches a working vacuum degree less than or equal to 1x10 -3 Pa, the lifting mechanism (4) drives the product (5) to rise to a position higher than the feeding device (2); In step S3, the motion mechanism (3) drives the feeding device (2) to move, the electromagnetic valve (202) of the feeding device (2) is opened at the same time, the feeding device (2) starts to discharge, the raw material is coated in the groove of the mold (6), and after coating is completed, the motion mechanism (3) drives the feeding device (2) to return to the initial parking position; In step S4, the lifting mechanism (4) drives the product (5) to descend into the groove of the mold (6), and the mold closing is completed. Step S5, the vacuum simulation cabin (1) is heated to 150 DEG C by the heating cover (102) of the vacuum simulation cabin (1), after the raw material is solidified on the product (5), the lifting mechanism (4) drives the product (5) to ascend, and demolding is completed, and meanwhile, the heating temperature of 150 DEG C is continuously maintained to carry out baking and degassing; Step S6, after baking is completed, the heating cover (102) of the vacuum simulation cabin (1) is closed, the vacuum simulation cabin (1) is restored to room temperature, the vacuum simulation cabin (1) is re-pressurized, the cabin door is opened after being re-pressurized to atmospheric pressure, the bearing platform vehicle (7) and all components thereon are integrally taken out, and finally, the product (5) is taken down.

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