Flexible clamp for friction stir welding of aircraft parts and machining process thereof
A friction stir welding and flexible fixture technology, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of difficult workpiece clamping, difficult welding, affecting the quality of aircraft auxiliary fuel tank components, etc., to achieve stable welding and welding quality. Good results
Active Publication Date: 2022-02-11
CHENGDU HONGXIA TECH CO LTD
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Problems solved by technology
However, because the workpiece is not easy to clamp in friction welding, it is also difficult to weld, or it is easy to deform during the welding process, which affects the quality of the aircraft auxiliary fuel tank components
Method used
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Embodiment 1
[0039] see Figure 1-5 , a flexible fixture for friction stir welding of aircraft parts, comprising a No. 1 fuel tank part 17 and a No. 2 fuel tank part 18, including:
[0040] The base, the base includes a fixedly connected backing plate 19 and a panel 20, and the front end of the backing plate 19 is movably connected with a bow-shaped shackle 21;
[0041] The rotating assembly is used to fasten the fuel tank parts, make the ends of the two fuel tank parts contact and connect and drive the two fuel tank parts to rotate coaxially;
[0042] The fixing component is set on one of the supporting plates to prevent the parts of the fuel tank from moving left and right;
[0043] The friction welding joint 3 is arranged on the outside of the rotating assembly, and the friction welding joint 3 contacts the interconnected ends of the two fuel tank parts;
[0044] Among them, the rotating assembly includes two symmetrically arranged support plates and a rotator, each support plate is c...
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The invention discloses a flexible clamp for friction stir welding of aircraft parts and machining process thereof. The flexible clamp comprises a first oil tank part and a second oil tank part and further comprises a base, which comprises a base plate and a panel which are fixedly connected, wherein the front end face of the base plate is movably connected with a bow-shaped shackle; a rotating assembly which is used for fastening the oil tank parts, enabling the end parts of the two oil tank parts to be in contact connection and driving the two oil tank parts to coaxially rotate; and a fixing assembly which is arranged on one supporting plate. According to the flexible clamp, the supporting plates and the straps in the rotating assembly are provided with containing grooves matched with the oil tank parts, and the oil tank parts can be accurately fixed; the fixing assembly can be adjusted according to the length of the oil tank parts, and the oil tank parts are pulled to be fixed in the direction of the supporting plates; and the rotating assembly and the fixing assembly are matched to enable different sections of oil tank parts to be in tight butt joint, and then the friction welding head is matched to enable welding to be more stable and welding quality to be better.
Description
technical field [0001] The invention relates to the field of welding technology, in particular to a flexible fixture for friction stir welding of aircraft parts and a processing technology thereof. Background technique [0002] Aircraft auxiliary fuel tanks all adopt a disassembled structure. The middle section of this structure is an open and thin-walled simplified body. The size requirements are strict, and welding deformation becomes the key to manufacturing. The decomposed auxiliary fuel tank is composed of a front section, a middle section, an external beam, a rear section and a tail. Friction welding is fast and flexible, and the welding process is stable and retestable, with excellent welding quality, no need for flux or shielding gas, and no welding fumes or other gases. It is suitable for welding aviation equipment. However, because the workpiece is not easy to clamp in friction welding, it is also difficult to weld, or it is easy to deform during the welding proce...
Claims
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IPC IPC(8): B23K20/12B23K20/26B23K37/04
CPCB23K20/126B23K20/122Y02T50/40
Inventor 刘伟军朱荣文游波陶波游侠谢寒徐小平
Owner CHENGDU HONGXIA TECH CO LTD