Numerical control skin stretch-forming machine structure
A stretching machine and skinning technology, which is applied in the field of CNC skinning stretching machine structure, can solve the problems of reducing the workload of subsequent processing and assembly processes, the negative impact of subsequent processing and assembly processes, and insufficient deformation.
Pending Publication Date: 2021-01-19
INTELLIGENT AEROSPACE MFG TECH BEIJING CO LTD
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Problems solved by technology
[0002] Aircraft and high-speed rail skins and skeletons are hyperbolic flat shell parts. Because of their large curvature, the internal deformation of the material is not sufficient when the traditional cold pressing process is used, and it is easy to produce large springback. Negative impact; the internal material structure of the parts formed by the drawing process can be fully deformed to reach a plastic deformation state, thereby greatly reducing the springback of the parts after forming, and reducing the work of subsequent processing and assembly processes Quantity; At present, there is no independent research and development capability for skin stretching machines in China, and this type of equipment is completely dependent on foreign imports. Therefore, a CNC skin stretching machine structure that can fully stretch and deform is urgently needed in China
Method used
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[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Typical embodiments of the invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein, rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0027] The invention provides a numerically controlled skin stretching machine structure, which is mainly used for the stretching preparation of large parts on aircraft, high-speed rail and other vehicles. The principle of the equipment is as follows: figure 1 As shown, the material is deformed by applying tension in two directions and an upward force to the material.
[0028] The structure of the CNC skin stretching machine of the present invention includes U-shaped arms 11, 12, brackets 21, work...
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The invention relates to a numerical control skin stretch-forming machine structure which comprises U-shaped arms, brackets, a workbench, an upper pressing device and guide rails, the pair of U-shapedarms with opposite open ends are arranged on a first guide rail in a sliding mode through the respective brackets, each U-shaped arm is provided with a jaw for clamping a workpiece, and the workbenchfor providing upward jacking force for the workpiece is arranged on the second guide rail. The upper pressing device for providing downward pressure for the workpiece is arranged on the third guide rail, the guide rails are double rails arranged in parallel, the width of the second guide rail is smaller than that of the first guide rail, and the width of the first guide rail is smaller than thatof the third guide rail. According to the numerical control skin stretch-forming machine structure, machining of parts of different sizes and different shapes can be met, and it can be guaranteed thatsufficient deformation is generated in the stretching process.
Description
technical field [0001] The invention belongs to the technical field of plate forming, and in particular relates to a numerical control skin stretching machine structure. Background technique [0002] Aircraft and high-speed rail skins and skeletons are hyperbolic flat shell parts. Because of their large curvature, the internal deformation of the material is not sufficient when the traditional cold pressing process is used, and it is easy to produce large springback. Negative impact; the internal material structure of the parts formed by the drawing process can be fully deformed to reach a plastic deformation state, thereby greatly reducing the springback of the parts after forming, and reducing the work of subsequent processing and assembly processes Quantity; At present, there is no independent research and development capability for skin stretching machines in China, and this type of equipment is completely dependent on foreign imports. Therefore, a CNC skin stretching mac...
Claims
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Login to View More IPC IPC(8): B21D43/00B21D31/04
CPCB21D31/04B21D43/003
Inventor 谢亚苏程鹏志成刚阮尚文葛宇龙
Owner INTELLIGENT AEROSPACE MFG TECH BEIJING CO LTD