Airplane covering transversal stretch forming loading track designing and numerical control code generating method

A technology of loading trajectory and aircraft skin, applied in the direction of digital control, computer control, program control, etc., can solve the problems of restricting the overall level of aircraft manufacturing, lack of precision control function of CNC drawing equipment, etc.
CN101510083AInactive Publication Date: 2009-08-19BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2009-08-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an aircraft skin transverse stretch-forming loading trajectory design and numerical control code generation method based on an ACB FET Series numerical control transverse stretching machine; the method comprises three steps: step one: the cross-section line is calculated by a transverse stretch-forming loading trajectory design (1); (2) the loading trajectory is searched; step two: the offset of a reference point is searched; step three: an inverse solution (1) mechanism analysis of the mechanism position is carried out; (2) a movement solution is carried out. The method firstly designs the space movement position and the attitude of a stretch-forming machine clamp in accordance with the deforming state of wools; and converts the loading trajectory into the numerical control code of the equipment by the inverse solution, thus improving the efficiency and accuracy of the stretch-forming process parameter design. As an optimization comparison is carried out by using the method, a more optimal production process proposal can be obtained, and scientificalization, digitalization and controllability of the aircraft skin transverse stretch-forming are realized. The invention has wide range of practical value and application prospect.
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Description

(1) Technical field:

[0001] The invention relates to an aircraft skin stretch trajectory design method, in particular to an aircraft skin transverse stretch loading trajectory design and a numerical control code generation method based on an ACB FET series numerically controlled transverse drawing machine. It belongs to the technical field of aviation aircraft manufacturing. (2) Background technology:

[0002] Stretch forming (referred to as stretch forming) is the main manufacturing method of aircraft skin parts. The skin stretch loading trajectory refers to the three-dimensional movement path of the stretcher clamp relative to the stretch die. Stretching of aircraft skin is a complex round-turn forming process, and the movement trajectory of the clamp has a direct impact on the quality of the parts. In recent years, domestic aviation manufacturing companies have generally introduced advanced CNC stretch forming machines, which have laid a good hardware environment for improving...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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