Multi-channel portable composite material repairing system

Abstract

The invention discloses a multi-channel portable composite material repairing system, and relates to the technical field of unmanned aerial vehicle composite material repairing. Comprising an instrument box, and a multi-channel vacuum system, a hot repair instrument control system, a temperature control system, an automatic heating system and a storage bin which are arranged in the instrument box, wherein the storage bin and the multi-channel vacuum system are correspondingly arranged on the two sides of the instrument box and are separated by a partition plate; a hot repair instrument control system, a temperature control system and an automatic heating system are sequentially arranged in the middle of the instrument box from top to bottom. The device is small and light, can be used for repairing composite material parts in a repair factory or an external field environment, and is suitable for high-quality quick repair of common faults of composite material parts of various types of military aircrafts and unmanned aerial vehicles.

Description

Technical Field

[0001] The invention relates to the technical field of composite material repair for unmanned aerial vehicles, and in particular to a multi-channel portable composite material repair system. Background Art

[0002] With the development of modern warfare, various unmanned systems have emerged in large numbers. Unmanned combat is profoundly changing the face of warfare and has been equipped and used in large quantities in the army. On-site emergency maintenance and support plays an important role in warfare. Making unmanned aerial vehicle equipment "durable, easy to use, and effective" in wartime is an urgent problem that needs to be solved in equipment emergency repair.

[0003] Composite materials are widely used in modern UAV structures due to their high specific strength and specific stiffness, strong designability, good fatigue performance, corrosion resistance and other excellent properties. Composite materials will inevitably have defects or damage during the manufacturing and use process. Due to the material characteristics, conventional maintenance methods cannot meet the strength requirements, so the repair of their structures has received more and more attention. At present, composite materials have low repair efficiency, are difficult to operate, have high costs, are limited by part size and are affected by low temperature environments, and cannot be used in high altitudes and extremely harsh environments.

[0004] Therefore, it is an urgent problem for those skilled in the art to propose a multi-channel portable composite material repair system to solve the difficulties existing in the prior art. Summary of the invention

[0005] In view of this, the present invention provides a multi-channel portable composite material repair system that can realize the repair of thick composite material structures and meet the needs of rapid repair of multiple damaged parts at the same time. It is not limited by part size and is not affected by low temperature environments. It can be used at high altitudes and extremely harsh environments and is more suitable for field repairs.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A multi-channel portable composite material repair system, comprising: an instrument box, and a multi-channel vacuum system, a thermal repair instrument control system, a temperature control system, an automatic heating system and a storage bin arranged in the instrument box;

[0008] The storage bin and the multi-channel vacuum system are arranged on both sides of the instrument box and are separated by a partition.

[0009] The heat repair instrument control system, temperature control system and automatic heating system are arranged in the middle of the instrument box from top to bottom.

[0010] The above system can optionally include a multi-channel vacuum system comprising: ten vacuum channels, a vacuum pump and a vacuum pressure gauge. The vacuum generated by the vacuum pump is output to the repair site through a quick connector via the ten vacuum channels, and the vacuum pressure gauge monitors the vacuum pressure value.

[0011] The above system, optionally, the control system of the thermal repair instrument includes: a microcomputer, a thermocouple signal conditioning module, an AD data acquisition system, an electric blanket heating power control system, a power module, a heat dissipation device and an alarm protection system;

[0012] The microcomputer, the thermocouple signal conditioning module, the AD data acquisition system, and the electric blanket heating power control system are located in the middle of the box, the AD data acquisition system is connected to the microcomputer, the microcomputer is connected to the electric blanket heating power control system, and the electric blanket heating power control system is connected to the thermocouple signal conditioning module;

[0013] The power module, heat dissipation device, and alarm protection system are located on the right side of the box. The power module is connected to the microcomputer and the heat dissipation device respectively, and the alarm protection system is connected to the microcomputer;

[0014] The microcomputer is connected to the multi-channel vacuum system.

[0015] In the above system, optionally, the temperature control system uses a carbon fiber reinforced silicone rubber electric blanket, the electric blanket has a maximum heat resistance temperature of 250°C and can provide 5 watts of power per square centimeter;

[0016] Use K-type thermocouple, with a measurement accuracy of 0.1°C;

[0017] The temperature control system automatically detects the number of thermocouples used when working, and uses one of the average temperature, maximum temperature and minimum temperature to control the curing process according to the user's setting.

[0018] In the above system, optionally, the automatic heating system starts to work when the ambient temperature in the chassis is lower than 0°C, ensuring that the ambient temperature in the chassis is higher than 0°C;

[0019] The automatic heating system is independent of the temperature control system.

[0020] The above-mentioned system may optionally include a storage bin for storing a tool kit and auxiliary materials for composite material repair. The tool kit for composite material repair includes a cutting tool, a vacuum cleaner, a drill, a heating blanket, a vacuum bag, and an isolation film, wherein the cutting tool, vacuum cleaner, and drill are used to clean damaged parts of the composite material structure.

[0021] It can be seen from the above technical solutions that, compared with the prior art, the present invention provides a multi-channel portable composite material repair system, which has the following beneficial effects: 1) The present invention adopts multi-channel vacuum repair technology to realize multiple repair positions at the same time, which provides technical support for the internal and external field repair of large thickness composite material parts in the development of aircraft models and the subsequent aircraft operation process; 2) Both autoclave molding materials and wet molding composite materials can be repaired by the present invention, and the internal quality of the repaired composite material structural parts is excellent; 3) The hot patching instrument repair technology for large thickness composite material structural parts is realized, which greatly reduces the cost, and provides technical support for the internal and external field repair of large thickness composite material parts in the development of aircraft models and the subsequent aircraft operation process; 4) The present invention is not limited by the size of parts and is not affected by low temperature environment. It can be used at high altitudes and extremely harsh environments, and is more suitable for field maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A structural diagram of a multi-channel portable composite material repair system provided by the present invention;

[0024] Figure 2 A schematic diagram of a multi-channel portable composite material repair system provided by the present invention before unpacking;

[0025] Figure 3 A schematic diagram of a multi-channel portable composite material repair system provided by the present invention after unpacking;

[0026] Figure 4 A structural diagram of the control system of the thermal patching instrument provided by the present invention;

[0027] Figure 5 A diagram of a damaged wing in a specific embodiment provided by the present invention;

[0028] Figure 6 A schematic diagram of the repair process of a multi-channel portable composite material repair system in a specific embodiment provided by the present invention;

[0029] Figure 7 A diagram of a wing that has been repaired by a multi-channel portable composite material repair system in a specific embodiment of the present invention.

[0030] in:

[0031] 1- ten vacuum channels; 2- storage compartment; 3- vacuum pump; 4- external cooling fan; 5- negative pressure converter; 6- vacuum pressure gauge; 7- outer box; 8- partition. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In this application, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprise one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] The present invention discloses a multi-channel portable composite material repair system, referring to Figure 1 As shown, it includes an instrument box, and a multi-channel vacuum system, a thermal patching instrument control system, a temperature control system, an automatic heating system and a storage bin arranged in the instrument box;

[0035] Reference Figure 2 As shown, the whole system is in a portable instrument case;

[0036] Reference Figure 3 As shown, the storage bin 2 and the multi-channel vacuum system are arranged on both sides of the instrument box respectively and are separated by a partition;

[0037] The heat repair instrument control system, temperature control system and automatic heating system are arranged in the middle of the instrument box from top to bottom.

[0038] Furthermore, the multi-channel vacuum system includes: ten vacuum channels 1, a vacuum pump 3 and a vacuum pressure gauge 6. The vacuum pump 3 can generate a vacuum pressure of up to 0.9 Bar. The vacuum generated by the vacuum pump 3 is output to the repair site through the quick connector via the ten vacuum channels 1. The vacuum pressure gauge 6 monitors the vacuum pressure value.

[0039] Further, see Figure 4 As shown, the control system of the thermal patching instrument includes: a microcomputer, a thermocouple signal conditioning module, an AD data acquisition system, an electric blanket heating power control system, a power module, a heat dissipation device and an alarm protection system;

[0040] The microcomputer, the thermocouple signal conditioning module, the AD data acquisition system, and the electric blanket heating power control system are located in the middle of the box, the AD data acquisition system is connected to the microcomputer, the microcomputer is connected to the electric blanket heating power control system, and the electric blanket heating power control system is connected to the thermocouple signal conditioning module;

[0041] The power module, heat dissipation device, and alarm protection system are located on the right side of the box. The power module is connected to the microcomputer and the heat dissipation device respectively, and the alarm protection system is connected to the microcomputer;

[0042] The microcomputer is connected to the multi-channel vacuum system; the microcomputer is the core of the system, which coordinates and controls the work of each subsystem, greatly improving the integration and reliability of the system;

[0043] Furthermore, the repair instrument also has a maintenance room, which is located below the intelligent operation panel. The maintenance room has maintenance space and storage space for storing maintenance materials and work. All these devices adopt an integrated design to form a complete system. Each component is uniformly controlled by the system program, and the system program itself can also be continuously upgraded and calibrated through input devices.

[0044] Furthermore, the curing process of composite material repair has two requirements for temperature control: the change of the slope of the temperature line in the temperature rise and temperature drop stages and the change of the temperature value in the dwell stage; the temperature control system uses a carbon fiber reinforced silicone rubber electric blanket, which has a maximum heat resistance temperature of 250°C and can provide 5 watts of power per square centimeter;

[0045] Use K-type thermocouple, with a measurement accuracy of 0.1°C;

[0046] When the temperature control system is working, it will automatically detect the number of thermocouples used, and use one of the average temperature, maximum temperature and minimum temperature to control the curing process according to the user's settings.

[0047] Furthermore, in order to ensure the normal use of the system in the low-temperature environment of the outdoor field, the composite material hot patching instrument has an automatic heating system. When the ambient temperature in the chassis is lower than 0°C, the automatic heating system starts to work to ensure that the ambient temperature in the chassis is higher than 0°C.

[0048] The automatic heating system is independent of the control system of the composite material hot filling instrument and has high reliability.

[0049] Furthermore, the storage bin 2 is used to store a complete set of tools and auxiliary materials for composite material repair. The complete set of tools for composite material repair includes a cutting tool, a vacuum cleaner, a drill, a heating blanket, a vacuum bag, and an isolation film, wherein the cutting tool, the vacuum cleaner, and the drill are used to clean damaged parts of the composite material structure.

[0050] In a specific embodiment, a certain type of drone wing panel is repaired, referring to Figure 5 As shown, the wing panel of the drone is damaged. Figure 6 As shown, a multi-channel portable composite material repair system of the present invention is used to repair the wing panels of a UAV, referring to Figure 7 Shown is a wing panel that has been repaired.

[0051] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0052] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-channel portable composite material repair system, characterized in that: It includes an instrument box, and a multi-channel vacuum system, a thermal patching instrument control system, a temperature control system, an automatic heating system and a storage bin arranged in the instrument box; The storage bin and the multi-channel vacuum system are arranged on both sides of the instrument box and are separated by a partition. The heat repair instrument control system, temperature control system and automatic heating system are arranged in the middle of the instrument box from top to bottom.

2. A multi-channel portable composite material repair system according to claim 1, characterized in that: The multi-channel vacuum system includes: ten vacuum channels, a vacuum pump and a vacuum pressure gauge. The vacuum generated by the vacuum pump is output to the repair part through the quick connector and the ten vacuum channels. The vacuum pressure gauge monitors the vacuum pressure value.

3. A multi-channel portable composite material repair system according to claim 1, characterized in that: The control system of the thermal patching instrument includes: microcomputer, thermocouple signal conditioning module, AD data acquisition system, electric blanket heating power control system, power module, heat dissipation equipment and alarm protection system; The microcomputer, the thermocouple signal conditioning module, the AD data acquisition system, and the electric blanket heating power control system are located in the middle of the box, the AD data acquisition system is connected to the microcomputer, the microcomputer is connected to the electric blanket heating power control system, and the electric blanket heating power control system is connected to the thermocouple signal conditioning module; The power module, heat dissipation device, and alarm protection system are located on the right side of the box. The power module is connected to the microcomputer and the heat dissipation device respectively, and the alarm protection system is connected to the microcomputer; The microcomputer is connected to the multi-channel vacuum system.

4. A multi-channel portable composite material repair system according to claim 1, characterized in that: The temperature control system uses a carbon fiber reinforced silicone rubber electric blanket, which has a maximum heat resistance of 250°C and can provide 5 watts of power per square centimeter. Use K-type thermocouple, with a measurement accuracy of 0.1°C; The temperature control system automatically detects the number of thermocouples used when working, and uses one of the average temperature, maximum temperature and minimum temperature to control the curing process according to the user's setting.

5. The multi-channel portable composite material repair system according to claim 1, characterized in that: The automatic heating system starts working when the ambient temperature inside the chassis is lower than 0℃, ensuring that the ambient temperature inside the chassis is higher than 0℃; The automatic heating system is independent of the temperature control system.

6. The multi-channel portable composite material repair system according to claim 1, characterized in that: The storage bin is used to store a complete set of tools and auxiliary materials for composite material repair. The complete set of tools for composite material repair includes cutting tools, vacuum cleaners, drills, heating blankets, vacuum bags, and isolation films. The cutting tools, vacuum cleaners, and drills are used to clean damaged parts of composite material structures.

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