Damping compression device suitable for bottom welding of rocket tank

Abstract

The invention provides a damping compression device suitable for bottom welding of a rocket tank. The damping compression device comprises workpieces 2, mechanical battens 3, damping components and elastic base plates 5; two ends of the mechanical battens 3 are in fastening connection with a working table; the damping components are uniformly distributed and mounted on the mechanical battens 3; center lines of the elastic base plates 5 are aligned to axes of the damping components and are uniformly distributed and mounted on the mechanical battens 3; the other ends of the elastic base plates 5are in a free state; and the damping components downwards compress the free ends of the elastic base plates 5, and the free ends of the elastic base plates 5 are compressed on the workpieces 2. According to the damping compression device, compression for any spherical-bottom and conical-bottom workpiece with a large-curvature radius can be realized and is not limited by a form of the bottom of the rocket tank, damping screws can be self-adjusted in real time to compensate deformation amount of the workpieces, and therefore, the high-quality requirement for a welding seam unit is met.

Description

technical field [0001] The invention relates to the technical field of welding the bottom of a rocket tank, in particular to a damping and pressing device suitable for welding the bottom of a rocket tank. Background technique [0002] At present, the welding process of friction stir welding is mostly used in the bottom welding system of rocket storage tanks in my country. When welding the longitudinal seam of the ball bottom or cone bottom workpiece of the rocket storage tank, the workpiece needs to be pressed tightly, because the upsetting force and forward resistance of friction stir welding are very high. Large, the workpiece will be deformed when welding the workpiece, and then the gap between the clamping device and the workpiece will cause loosening. Usually, when this happens, the loosening will be eliminated by manually readjusting the clamping device repeatedly, but this method will greatly Increase the labor intensity of workers and reduce production efficiency, beca...

AI Technical Summary

Problems solved by technology

[0002] At present, the welding process of friction stir welding is mostly used in the bottom welding system of rocket storage tanks in my country. When welding the longitudinal seam of the ball bottom or cone bottom workpiece of the rocket storage tank, the workpiece needs to be pressed tightly, because the upsetting force and forward resistance of friction stir welding are very high. Large, the workpiece will be deformed when welding the workpiece, and then the gap between the clamping device and the workpiece will cause loosening. Usually, when this happens, the loosening will be eliminated by manually readjusting the clamping device repeatedly, but this method will greatly Increase the labor intensity of workers and reduce production efficiency. Because it is artificially adjusted in real time, it will bring safety hazards. Not only is the efficiency low, it may endanger the personal safety of workers, and more importantly, it will affect the welding quality of the weld unit.

The compression device with damping has not been used in the welding system of the bottom of the rocket tank in our country, so it is necessary to invent a damping compression device for the welding system of the bottom of the rocket tank

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