Aircraft skin cutting device

Abstract

The invention provides an aircraft skin cutting device which is used for cutting a circular skin and a wedge-shaped skin made of metal or composite materials. The cutting device comprises a water tank 1, a water pump 2, a pressure accumulator 3, a pressure control valve 4, a three-axis arm 5, a clamping mechanism 6 and a control computer 7. The water pump 2 pumps water in the water tank 1 and conveys the water to the pressure accumulator 3, the pressure accumulator 3 is connected with the pressure control valve 4, the pressure control valve 4 controls the ejection pressure of water flow, the pressure control valve 4 is connected with the three-axis arm 5, and the three-axis arm 5 is used for forming the ejection radius and the ejection angle of the jet water flow. The clamping mechanism 6 is used for clamping, supporting and rotating the cut skin, so that the skin is cut by the jet water flow. The control computer 7 can set cutting parameters and control cutting of the skin. According to the aircraft skin cutting device, skin cutting is achieved through the jet water flow, internal stress cannot be generated on metal skin, and flying dust cannot be generated when a composite material is cut.

Description

technical field [0001] The invention relates to the field of aircraft maintenance, in particular to mechanical cutting during aircraft skin maintenance, and is suitable for cutting skins of various shapes. Background technique [0002] For a long time, skin cutting in the process of aircraft damage repair has been mainly done manually, with low precision and difficult marking. After marking the line by hand, the machine maintenance tool is used to manually cut along the shape of the cutting line, which is inconvenient to operate and affects the accuracy and progress of the repair. When the workload of maintenance tasks is heavy for maintenance personnel, it is very easy to cause the situation that the tasks cannot be completed. [0003] The utility model patent (authorized announcement number CN205271166U) provides a laser cutting device that relies on CNC machine tools to cut skins, which can effectively eliminate the noise generated during skin cutting, improve the workin...

AI Technical Summary

Problems solved by technology

However, this device can only cut circular skins, and cannot cut wedge-shaped skins.

[0006] Most of the existing technologies cannot cut wedge-shaped skins, because the sharp wedge-shaped corners of the skin are easily deformed when the cutting is about to be completed, resulting in damage to the cutting parts

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