Reconfigurable flexible form keeping rack and form keeping method

Abstract

The invention discloses a reconfigurable flexible form keeping rack and a form keeping method. The reconfigurable flexible form keeping rack comprises a frame, reconfigurable form keeping frames, flexible form keeping devices, flexible tight absorbing devices, supporting parts, positioning parts, target points and vacuum generators, wherein the frame is provided with a plurality of parallel working frames and are provided with supporting arms at four corners; the target points are arranged on the supporting arms; the supporting parts are arranged at the tail ends of the supporting arms; the positioning parts which are in fitting connection with product lug sheets are arranged on the side surface of the frame; the reconfigurable form keeping frames are hung at the outside of the working frames; a plurality of flexible form keeping device sets are arranged at equal intervals at corresponding positions on two side surfaces of each reconfigurable form keeping frame, and flexible tight absorbing devices are arranged at the bottom parts of the reconfigurable form keeping frame, and the flexible tight absorbing devices are arranged in the centers of the flexible form keeping device sets;and the vacuum generators enable vacuum of the flexible tight absorbing devices, so that adsorbed products can be subjected to form keeping.

Description

technical field [0001] The application relates to the technical field of aircraft assembly, in particular to a reconfigurable flexible shape-preserving frame and a shape-preserving method. Background technique [0002] Taking aircraft assembly as an example, the siding in the aircraft is a thin-walled structure with weak rigidity, easy deformation, and no shape accuracy. But at the same time, the shape accuracy of the aircraft siding is related to the aerodynamic shape of the aircraft, which directly affects the performance and quality of the aircraft. Problem, so, for the same structure with weak stiffness, it is impossible to satisfy high precision. The conventional method is to set up a shape-preserving frame, and use the shape-preserving frame to control the weak stiffness structure from deformation and improve the accuracy. [0003] The traditional type-protected frames are all special-purpose type-protected frames without versatility. Because there are many products th...

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Problems solved by technology

[0003] The traditional type-protected frames are all special-purpose type-protected frames without versatility. Because there are many products that need to be type-protected in the aircraft, the number of type-protected frames is also large, which has many problems such as high manufacturing cost, low utilization rate, and large workshop area.

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