Composite material J type longitudinal wall positioning integral forming tool and forming method thereof

Abstract

The invention relates to a composite material J type longitudinal wall positioning integral forming tool. A foundation coating is arranged on a coating forming tool. A J type longitudinal wall is arranged in the designated position on the upper surface of the foundation coating. An inner longitudinal wall forming tool is arranged on the inner surface of the J type longitudinal wall through a rubber compensation layer, and the inner form of the J type longitudinal wall is completely filled with the inner longitudinal wall forming tool. The outer surface of the J type longitudinal wall is coated with an outer longitudinal wall forming tool. A cuboid structure without a cavity is formed through the outer longitudinal wall forming tool, the inner longitudinal wall forming tool and the J type longitudinal wall. A positioning beam is connected with the coating forming tool through positioning lug pieces. The positioning beam stretches across the outer longitudinal wall forming tool. The top of the positioning beam is connected with the upper surface of the outer longitudinal wall forming tool through a fixing member. Specific to the structural characteristics of a carbon fiber composite material J type wall, the problems of excursion of the longitudinal wall axis size, rib-line size and longitudinal wall shape in the manufacturing process of the J type wall are solved through the optimal design of an existing tool structure.

Description

technical field [0001] The invention relates to a composite material J-shaped vertical wall positioning overall forming tool and its forming method, in particular to a positioning tool for the integral forming of a J-shaped wall, which ensures the position accuracy and forming quality of parts. Background technique [0002] Due to the advantages of high specific strength, high specific stiffness, light weight, fatigue resistance, and corrosion resistance, composite materials are widely used in the manufacture of panel parts. The longitudinal wall of composite material is the main load-bearing structural member of the leading edge of the wing, and is one of the typical structural forms of the wing. The longitudinal wall participates in and transmits the load from the airfoil while providing the load to the airfoil while providing support to the airfoil. The tolerance of the longitudinal wall of large-size composite materials and the offset tolerance of the rib line direction...

AI Technical Summary

Problems solved by technology

The tolerance of the longitudinal wall of large-size composite materials and the offset tolerance of the rib line direction will directly affect the quality of later assembly. The original positioning methods cannot accurately guarantee the size of the rib line and the axial direction at the same time; the second difficulty lies in the vertical wall structure due to the height It is relatively high, and it is easy to tilt left and right or deviate during the pressurization process of the autoclave. If the original positioning device is used to limit the position, it will bring greater difficulties to the packaging, and the gap between the positioning device and the longitudinal wall will easily cause The vacuum bag is bridged, and the vacuum bag is easily broken down during the pressurization process

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