A bushing curing tool welding assembly
By using curing boxes and rod-type heating components during the curing process of aircraft composite materials, the problems of time-consuming and laborious bushing curing operations and large energy consumption in the prior art are solved, and efficient and energy-saving curing effects are achieved.
Patent Information
- Application Number
- CN202420870138.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-25
AI Technical Summary
Prior Art During the curing process of aircraft composite materials, curing at the bushing requires pushing the entire fuselage or wing into the curing furnace, resulting in time-consuming and labor-intensive operation, occupying a large amount of space, and consuming a lot of energy in cold environments.
A curing box is used instead of a curing furnace, and a heating component with a rod-shaped structure is added, which transfers heat to the bushing through a heat conduction pipe, and uses a small curing box and fan to speed up the curing speed and reduce heat loss.
The efficient curing of bushings is achieved, energy consumption is saved, operating procedures are simplified, and space and time are reduced for production.
Smart Images
Figure CN222697946U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of bushing fixing devices, and more specifically to a bushing curing tool welding assembly. Background technology:
[0002] The curing technology of composite materials refers to a method of using special processes to accelerate the polymerization speed of the resin matrix in the prepreg to obtain a material with higher density. This technology is one of the indispensable technologies in the production or bonding repair of composite materials. When aircraft composite materials are produced and repaired, the heating curing method is generally used, that is, the components to be cured are placed in the curing oven, and a certain temperature and humidity are set to achieve the effect of thermal curing. However, at the bushing where the fuselage and the wing are connected, since the bushing is added in the subsequent process, other parts have completed the original required curing. When the bushing needs to be cured, the entire fuselage or wing must be pushed into the curing oven for curing. Such an operation is time-consuming and labor-intensive, and placing the entire fuselage and wing in the curing oven will take up a lot of space, affecting the production progress; especially in the cold winter, such an operation will cause energy consumption. Utility model content:
[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a bushing curing tool welding assembly, which adopts a curing box instead of a curing furnace, and adds a heating assembly with a rod-type structure to achieve bushing curing connection on the wing, which can effectively save energy and is easy to operate.
[0004] A bushing curing tool welding assembly comprises a heat conducting pipe and a curing box, a rectangular workpiece inlet is formed on the front end surface of the curing box, a circular heating inlet is formed on the side wall of one side of the curing box, a wing is inserted in the workpiece inlet of the curing box, a horizontal bushing is inserted on the wing inside the curing box, the heat conducting pipe is inserted in the bushing of the wing, one end of the heat conducting pipe passes through the heating inlet of the curing box and is fixedly connected to an end cover; an electric heating element is inserted in the heat conducting pipe, a cable is electrically connected to the electric heating element, and the cable is inserted on the end cover; a handle is provided on one side of the end cover, a vertical connecting rod is bent at the upper end of the handle, and the connecting rod is fixedly connected to the end cover.
[0005] Preferably, a movable fan is placed in the curing box.
[0006] Preferably, a vertical ear plate is formed on the end cover, a connecting rod on the handle rests on the ear plate, a plurality of screws are inserted into the ear plate, and the screws are threadedly fixed on the connecting rod.
[0007] Preferably, the diameter of the outer wall of the heat conducting pipe is equal to the diameter of the inner wall of the bushing.
[0008] Preferably, the cable is a silicone cable, and a temperature controller is fixedly connected to the cable, and the temperature controller is located outside the curing box.
[0009] Preferably, the aperture of the heating inlet on the curing box is larger than the diameter of the outer wall of the heat conducting pipe, and the length of the heat conducting pipe is larger than the length of the bushing.
[0010] Preferably, the electric heating element on the heat-conducting pipe is located on the inner side of the bushing.
[0011] The beneficial effects of the utility model are:
[0012] The present invention adopts a curing box instead of a curing furnace, and adds a heating component with a rod-shaped structure to realize the curing connection of the bushing on the wing, which can effectively save energy and is easy to operate. Description of the drawings:
[0013] Figure 1 It is a partial cross-sectional schematic diagram of the utility model in the front view direction;
[0014] Figure 2 This is a schematic diagram of the structure of the internal heat conduction pipe part of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the inner curing box part of the utility model;
[0016] In the figure: 1. heat pipe; 2. electric heating element; 3. end cover; 4. handle; 5. cable; 6. screw; 7. temperature controller; 8. curing box; 81. workpiece inlet; 82. heating inlet; 9. fan; 10. wing; 11. bushing. Specific implementation method:
[0017] Example: See Figure 1 , 2 As shown, a bushing curing tool welding assembly includes a heat-conducting pipe 1 and a curing box 8, a rectangular workpiece inlet 81 is formed on the front end surface of the curing box 8, a circular heating inlet 82 is formed on the side wall of one side of the curing box 8, a wing 10 is inserted in the workpiece inlet 81 of the curing box 8, a transverse bushing 11 is inserted on the wing 10 inside the curing box 8, the heat-conducting pipe 1 is inserted in the bushing 11 of the wing 10, one end of the heat-conducting pipe 1 passes through the heating inlet 82 of the curing box 8 and is fixedly connected to an end cover 3; an electric heating element 2 is inserted in the heat-conducting pipe 1, the electric heating element 2 adopts a heating core rod, a cable 5 is electrically connected to the electric heating element 2, and the cable 5 is inserted on the end cover 3; a handle 4 is provided on one side of the end cover 3, and a vertical connecting rod 41 is bent at the upper end of the handle 4, and the connecting rod 41 is fixedly connected to the end cover 3.
[0018] The curing box 8 is provided with a movable fan 9 therein.
[0019] The end cover 3 is formed with a vertical ear plate 31 , a connecting rod 41 on the handle 4 abuts against the ear plate 31 , a plurality of screws 6 are inserted into the ear plate 31 , and the screws 6 are threadedly fixed on the connecting rod 41 .
[0020] The diameter of the outer wall of the heat conducting pipe 1 is equal to the diameter of the inner wall of the bushing 11 .
[0021] The cable 5 is made of silicone cable, and a temperature controller 7 is fixedly connected to the cable 5. The temperature controller 7 is located outside the curing box 8. The end of the cable 5 is connected to 220V AC power.
[0022] The aperture of the heating inlet 82 on the curing box 8 is larger than the diameter of the outer wall of the heat-conducting pipe 1 , and the length of the heat-conducting pipe 1 is larger than the length of the bushing 11 .
[0023] The electric heating element 2 on the heat-conducting pipe 1 is located inside the bushing 11 .
[0024] Working principle: The utility model is a bushing curing tool welding assembly, which adopts power-on to realize that the electric heating element 2 transfers heat to the heat-conducting pipe 1, and then the heat-conducting pipe 1 is inserted into the bushing 11, and the heat obtained by the heat-conducting pipe 2 is directly transferred to the bushing 11 through heat conduction. This process is carried out in a small curing box 8. In order to speed up the curing speed and reduce heat loss, the fan 9 is started to speed up the air flow rate in the box at the same temperature, shortening the time required for curing while greatly reducing energy consumption.
[0025] During operation, the wing 10 with one end of the bushing is inserted into the curing box 8 from the workpiece inlet 81, and the heat pipe 1 is carefully inserted into the bushing 11 from the heating inlet 82 (the heat pipe 1 is cleaned before insertion, and acetone or other solutions can be used);
[0026] Then, the fan 9 in the curing box 1 is turned on, the flow rate of the fan 9 is minimum, and a heat-resistant film is provided at the heating inlet 82, and the film plays a certain sealing role;
[0027] Then the electric heating element 2 is connected to the power supply and the temperature control is set at 60°C for 5 hours. After the curing is complete, open the curing box 8, wait for 1 hour to cool, and then slowly take out the heat pipe 1;
[0028] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.
Claims
1. A bushing curing tool welding assembly, comprising a heat conducting pipe (1) and a curing box (8), wherein a rectangular workpiece inlet (81) is formed on the front end surface of the curing box (8), a circular heating inlet (82) is formed on the side wall of one side of the curing box (8), a wing (10) is inserted into the workpiece inlet (81) of the curing box (8), and a transverse bushing (11) is inserted into the wing (10) inside the curing box (8), characterized in that: A heat-conducting pipe (1) is inserted into a bushing (11) of a wing (10), and one end of the heat-conducting pipe (1) passes through a heating inlet (82) of a curing box (8) and is fixedly connected to an end cover (3); an electric heating element (2) is inserted into the heat-conducting pipe (1), and a cable (5) is electrically connected to the electric heating element (2), and the cable (5) is inserted into the end cover (3); a handle (4) is provided on one side of the end cover (3), and a vertical connecting rod (41) is bent at the upper end of the handle (4), and the connecting rod (41) is fixedly connected to the end cover (3).
2. A bushing curing tool welding assembly according to claim 1, characterized in that: The curing box (8) is provided with a movable fan (9) therein.
3. The bushing curing tool welding assembly according to claim 1, characterized in that: A vertical ear plate (31) is formed on the end cover (3), a connecting rod (41) on the handle (4) abuts against the ear plate (31), a plurality of screws (6) are inserted into the ear plate (31), and the screws (6) are screwed and fixed on the connecting rod (41).
4. The bushing curing tool welding assembly according to claim 1, characterized in that: The diameter of the outer wall of the heat conducting pipe (1) is equal to the diameter of the inner wall of the bushing (11).
5. A bushing curing tool welding assembly according to claim 4, characterized in that: The cable (5) is a silicone cable, and a temperature controller (7) is fixedly connected to the cable (5), and the temperature controller (7) is located outside the curing box (8).
6. The bushing curing tool welding assembly according to claim 1, characterized in that: The hole diameter of the heating inlet (82) on the curing box (8) is larger than the diameter of the outer wall of the heat conducting pipe (1), and the length of the heat conducting pipe (1) is larger than the length of the bushing (11).
7. The bushing curing tool welding assembly according to claim 1, characterized in that: The electric heating element (2) on the heat-conducting pipe (1) is located on the inner side of the bushing (11).