Method and equipment for removing skin margin of large aircraft parts

Abstract

The invention belongs to the field of aviation, and relates to a method and technological device for removing skin allowance of a big component of an airplane. The method for removing the skin allowance of the big component of the airplane comprises the steps that firstly, all assemblies constituting the big component of the airplane are positioned, clamped and connected on an assembling tool; secondly, a redundant portion of the component is clamped through a skin clamping assembly 8 on a flat plate assembly; thirdly, special cutting equipment is mounted on a flat plate assembly guide rail 4 through four clamping wheels 91; fourthly, the special cutting equipment 9 is corrected through a tool setting block 10; and fifthly, an air source control valve and a tool rotation control valve of the special cutting equipment 9 are opened in sequence, then the cutting depth of a cutting tool is adjusted to be 8-10 mm through a manual adjustment handle, and finally a cutting device crawling control valve is opened, so that the special cutting equipment 9 is made to clockwise cut the skin allowance of the component on the guide rail 4. By the adoption of the method and technological device for removing the skin allowance of the big component of the airplane, the labor intensity of workers can be relieved, and the working efficiency and the working quality can be improved.

Description

technical field [0001] The invention relates to a method and technological equipment for removing the skin margin of large aircraft parts. Background technique [0002] The butt joints of large aircraft parts have high quality requirements. To achieve this purpose, the end face margins need to be accurately removed after the assembly of large parts is completed. Due to the high precision of the removal, the difficulty of removing the margin increases, and at the same time, the assembly cycle of the aircraft is seriously affected. [0003] At present, two methods are generally used in the industry to ensure the quality of the butt joint. The first type: remove the skin of the small parts before the large parts are assembled, that is, the large parts are assembled without margin; the second type: after the parts are assembled, use the scriber on the assembly tool to mark the product on the end surface of the part The edge line is then cut off manually. Both methods have the...

AI Technical Summary

Problems solved by technology

Assembling parts without allowance puts forward more stringent requirements on tooling, it is difficult to achieve the expected process assembly effect, often resulting in scrapped skins; when manual cutting is used, due to the limitation of the space on the frame, the construction of the operator is very difficult Large size, low cutting quality of the end face, too long cutting time, prolonging the assembly cycle of parts

Images