Flexible accommodating structure, multi-point profile stretch bending mold and stretch bending molding method

A multi-point mold and bending mold technology, applied in forming tools, manufacturing tools, metal processing equipment, etc., can solve problems such as inability to adapt to the diversity of profile sections, and achieve shortening of forming production cycles, digital production methods, and cost savings. Effect

Active Publication Date: 2015-01-28
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] In order to solve the problem that the existing multi-point mold technology cannot adapt to the diversity of profile cross-sections when it is applied to profile stretch bending

Method used

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  • Flexible accommodating structure, multi-point profile stretch bending mold and stretch bending molding method
  • Flexible accommodating structure, multi-point profile stretch bending mold and stretch bending molding method
  • Flexible accommodating structure, multi-point profile stretch bending mold and stretch bending molding method

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Embodiment Construction

[0044]The flexible containment structure of the present invention will be described in further detail below in conjunction with the accompanying drawings. A flexible containment structure, including a ferrule 2 that can be set outside the profile 1, the top of the ferrule 2 is connected to the push cylinder 3, the bottom of the ferrule 2 is connected to the multi-point mold punch 4, and the two ends of the ferrule 2 The end face baffles 5 used to block the ferrule 2 are respectively provided. The end face baffle 5 is provided with a through hole 51 for the profile 1 to pass through. The ferrule 2 and the end face baffles 5 at both ends of the ferrule 2 enclose the closed space. It is filled with a flexible filler 6 capable of wrapping the profile 1, such as figure 1 , figure 2 and image 3 shown.

[0045] When in use, pass the profile 1 through the ferrule 2, the end baffle 5 and the flexible filler 6, so that the flexible filler 6 is always tightly attached to the surface...

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Abstract

The invention provides a flexible accommodating structure, a multi-point profile stretch bending mold and a stretch bending molding method. A sealing space is formed inside the flexible accommodating structure, and a flexible medium filled in the sealing space is flexible filler. According to the profile section characteristics, the flexible filler is designed and replaced, so that the flexible filler adapts to the variety of the profile section. The flexible filler is arranged in the closed accommodating structure to bear 3D (three-dimensional) compressive stress, so that the profile section can be supported to avoid distortion. The stretch bending molding method adopts the multi-point profile stretch bending mold containing the flexible accommodating structure, so that the molding production period is shortened, the cost is reduced, and an efficient and digital production mode is provided for novel lightweight high-strength aluminum alloy frame parts.

Description

technical field [0001] The invention relates to the technical field of metal profile processing equipment, in particular to a flexible containment structure for multi-point profile stretch-bending forming, a multi-point profile stretch-bending die containing the flexible containment structure, and a stretch-bending forming method. Background technique [0002] The profile parts are all over the whole body of the aircraft, with different cross-sectional forms. The materials include new aluminum (lithium) alloys and titanium alloys. They are used for the main load-bearing structure of frames, beams, and long trusses in the fuselage, used as reinforcement structures in the wings, and used in the interior of the cabin. on the seat rail. Bending parts are important structural parts that constitute the main load-bearing frame of the aircraft. Their forming quality is directly related to the assembly accuracy of the aircraft, the aerodynamic shape of the whole aircraft, and the ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/01B21D37/10B21D22/20
CPCB21D22/20B21D37/01B21D37/10
Inventor 吴为刘宝胜曾元松
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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