Welding fixture for aircraft titanium alloy parts

Abstract

The utility model discloses a welding fixture for an aircraft titanium alloy part. The welding fixture comprises a circular base; two first bosses which are symmetrically arranged left and right are arranged on the circumferential outer wall of the circular base, an air inlet pipe is arranged on the side wall of the first boss located on the leftmost side, an exhaust pipe is arranged on the side wall of the first boss located on the rightmost side, two second bosses which are symmetrically arranged front and back are arranged on the circumferential outer wall of the circular base, and an air outlet pipe is arranged on the side wall of the second boss. A side baffle is fixed to the top of the round base through screws, a round upper pressing plate is arranged at the top of the side baffle, two first fixing plates connected with the first bosses are arranged at the top of the round upper pressing plate, and two second fixing plates connected with the second bosses are further arranged at the top of the round upper pressing plate. The welding clamp for the aircraft titanium alloy part is reasonable in structural design, the part to be welded can be firmly fixed under the combined action of the base, the side baffles and the upper pressing plate, the rate of finished products is high, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a welding fixture for aircraft titanium alloy parts. Background Art

[0002] Titanium alloy materials have excellent characteristics such as light weight, high strength, and good formability, and are widely used in the aviation field. However, parts with a curved single-bent edge ring shape cannot be formed in one step and need to be welded together from two single-bent edge ring parts. Tungsten inert gas (TIG) welding technology is used for welding. During the welding process, a large amount of heat is generated, which can cause the parts to oxidize and even deform. Therefore, a welding fixture for fixing and protecting the parts is required to ensure the welding quality. Summary of the Utility Model

[0003] The utility model overcomes the deficiencies of the prior art and provides a welding fixture for aircraft titanium alloy parts.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a welding fixture for aircraft titanium alloy parts, comprising:

[0005] A circular base;

[0006] Characterized in that: two first bosses arranged symmetrically left and right are provided on the circumferential outer wall of the circular base, an air inlet pipe is provided on the side wall of the leftmost first boss, an exhaust pipe is provided on the side wall of the rightmost first boss, two second bosses arranged symmetrically front and back are provided on the circumferential outer wall of the circular base, a side baffle is fixed to the top of the circular base by screws, a circular upper pressing plate is provided on the top of the side baffle, two first fixing plates connected to the first bosses are provided on the top of the circular upper pressing plate, and two second fixing plates connected to the second bosses are further provided on the top of the circular upper pressing plate.

[0007] In the above structure, air nozzles are provided on the left and right outer walls of the side baffle, the air inlet pipe and the exhaust pipe are respectively connected to the two air nozzles, and a gas channel communicating with the air nozzles is provided in a circle on the inner wall of the side baffle.

[0008] In the above structure, the first fixing plate and the first boss are fixed by screws.

[0009] In the above structure, the second fixing plate and the second boss are fixed by screws.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The welding fixture structure of the aircraft titanium alloy parts of the present utility model is reasonably designed. Under the combined action of the base, side baffle and upper pressing plate, the parts to be welded can be firmly fixed. At the same time, argon gas is introduced through the air inlet pipe, so that the argon gas in the gas channel fills the entire reverse side of the weld, protecting the weld, with a high finished product rate and improved production efficiency. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of a welding fixture for aircraft titanium alloy parts according to an embodiment of the present utility model;

[0012] Figure 2 is Figure 1 an enlarged structural diagram at A in

[0013] Figure 3 is an exploded structural diagram of a welding fixture for aircraft titanium alloy parts according to an embodiment of the present utility model;

[0014] Figure 4 is a reference diagram of the use state of a welding fixture for aircraft titanium alloy parts according to an embodiment of the present utility model.

[0015] In the figure:

[0016] 1, circular base; 2, first boss; 3, air inlet pipe; 4, exhaust pipe; 5, second boss; 6, side baffle; 7, circular upper pressing plate; 8, first fixing plate; 9, second fixing plate; 10, air nozzle; 11, gas channel; 12, first part; 13, second part. Detailed Description of the Preferred Embodiments

[0017] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0018] As Figures 1-3 shown, a welding fixture for aircraft titanium alloy parts includes:

[0019] circular base 1;

[0020] It is characterized in that: on the circumferential outer wall of the circular base 1, there are two first bosses 2 arranged symmetrically left and right, among which an air inlet pipe 3 is provided on the side wall of the leftmost first boss 2, and an exhaust pipe 4 is provided on the side wall of the rightmost first boss 2. On the circumferential outer wall of the circular base 1, there are two second bosses 5 arranged symmetrically front and back. A side baffle 6 is fixed to the top of the circular base 1 by screws. A circular upper pressing plate 7 is provided on the top of the side baffle 6. On the top of the circular upper pressing plate 7, there are two first fixing plates 8 connected to the first bosses 2. On the top of the circular upper pressing plate 7, there are also two second fixing plates 9 connected to the second bosses 5.

[0021] In the above structure, air nozzles 10 are provided on the outer walls on the left and right sides of the side baffle 6. The air inlet pipe 3 and the exhaust pipe 4 are respectively connected to the two air nozzles 10. On the inner wall of the side baffle 5, there is a gas channel 11 communicating with the air nozzles 10.

[0022] In the above structure, the first fixing plate 8 and the first boss 2 are fixed by screws.

[0023] In the above structure, the second fixing plate 9 and the second boss 5 are fixed by screws.

[0024] When the welding fixture for aircraft titanium alloy parts of the present utility model is working specifically, as Figure 4 shown, first place the first part 12 on the top surface of the circular base, install the side baffle on the top of the first part 12, then connect the air inlet pipe and the exhaust pipe to the two air nozzles respectively. At this time, the side baffle is completely fixed and clamps the first part 12. Then place the second part 13 on the top of the first part 12 and align them. After that, install the first fixing plate and the second fixing plate on the circular upper pressing plate. Finally, install the first fixing plate and the second fixing plate on the first boss and the second boss respectively by screws. At this time, the upper pressing plate presses the first part 12 and the second part 13. The whole fixture has completely fixed the parts. The protective gas argon enters from the air inlet pipe, and the argon can be sent to the back of the weld through the gas channel on the inner wall of the side baffle. Connect argon with a purity of 99.99% for at least 30S, adjust the parameters to make the argon fill the whole back of the weld, form a stable protective gas field, reach the welding conditions, and achieve the purpose of protecting the weld.

[0025] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A welding fixture for aircraft titanium alloy parts, comprising: Round base (1); The invention is characterized in that: two first bosses (2) are arranged symmetrically on the circumferential outer wall of the circular base (1), wherein an air intake pipe (3) is arranged on the side wall of the first boss (2) on the far left, and an exhaust pipe (4) is arranged on the side wall of the first boss (2) on the far right, and two second bosses (5) are arranged symmetrically front to back on the circumferential outer wall of the circular base (1), a side baffle (6) is fixed on the top of the circular base (1) by screws, a circular upper pressure plate (7) is provided on the top of the side baffle (6), two first fixing plates (8) connected to the first boss (2) are provided on the top of the circular upper pressure plate (7), and two second fixing plates (9) connected to the second boss (5) are also provided on the top of the circular upper pressure plate (7).

2. The welding fixture for aircraft titanium alloy parts according to claim 1 is characterized in that: Air nozzles (10) are provided on the left and right outer walls of the side baffle (6), the air inlet pipe (3) and the exhaust pipe (4) are respectively connected to the two air nozzles (10), and a circle of gas channels (11) connected to the air nozzles (10) is provided on the inner wall of the side baffle (5).

3. The welding fixture for aircraft titanium alloy parts according to claim 1, characterized in that: The first fixing plate (8) and the first boss (2) are fixed by means of screws.

4. The welding fixture for aircraft titanium alloy parts according to claim 1, characterized in that: The second fixing plate (9) and the second boss (5) are fixed by means of screws.

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