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Multilayer numerical control programming method for flexible hole formation on large-scale wing part

A numerical control programming, multi-level technology, applied in the field of offline programming system, can solve the problems of poor quality, high labor intensity and time-consuming manual hole making

Active Publication Date: 2014-04-16
SHENYANG AIRCRAFT CORP
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Problems solved by technology

Finally, the ribs and the skin are reamed and reamed together to generate the technological holes used for riveting. This process is completed in four steps, all of which are labor-intensive, time-consuming, and labor-intensive. poor

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  • Multilayer numerical control programming method for flexible hole formation on large-scale wing part

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Embodiment Construction

[0015] A multi-level numerical control programming method for flexible hole-making of large-scale wing parts, characterized in that it includes the following steps:

[0016] 1) Reading in parts and blank files: Add the digital model of the aircraft wing parts and its blank model for programming operations through commercial CAD software;

[0017] 2) Addition of missing features: The imported wing part model usually does not include the hole position features of the holes that need to be identified for programming. It is necessary to adopt secondary development methods for CAD software. In the digital model, the required hole position information;

[0018] 3) Extract relevant information from the machine tool parameter library and tool parameter library, and define the processing preparation parameters: the definition of the processing preparation parameters includes: machine tool parameter settings, processing coordinate system settings and other auxiliary parameter settings, ...

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Abstract

The invention relates to a multilayer numerical control programming method for flexible hole formation on a large-scale wing part. The multilayer numerical control programming method includes the steps as follows: (1) reading part and blank documents; (2) adding missing features, that is, generating needed hole position information in a digital model; (3) extracting related information in a machine tool parameter library and a cutter parameter library, performing definition of machining preparation parameters, that is, setting machine tool parameters, setting a machining coordinate system and setting other auxiliary parameters; (4) extracting related information in a technological parameter library and a cutting parameter library, performing geometrical characteristic recognition and related parameter setting, namely, machining path planning and parameter setting; (5) extracting related information in a technological knowledge library, and performing cutter path generation and simulation verification; (6) generating a cutter path document; and (7) postprocessing. The system is used in the process of flexible hole formation on a wing, can finish skin and rib drilling and dimple programming work in one step, effectively improves the programming efficiency, and meanwhile improves the auxiliary hole position precision.

Description

technical field [0001] The invention relates to a multi-level numerical control programming method for flexible hole-making of large-scale wing components, which is used in an off-line programming system for flexible assembly of aircraft wings. Background technique [0002] In the assembly of large skin parts, the requirements for the key process of hole making are more refined and stricter, while the assembly method in our country is still at the stage of manual hole making. Usually, the assembly of large-scale skin parts is the process of drilling the skin and the skeleton together, and riveting the skin on the skeleton. The parts that need to be drilled on the skeleton are mainly ribs. In the traditional assembly process, they are sent to the assembly The ribs have been manually made bottom holes using a jigsaw positioning, and then, after matching with the skin, the bottom holes on the skin have been made through reverse penetration. Finally, the ribs and the skin are r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4097
Inventor 欧阳冯子明
Owner SHENYANG AIRCRAFT CORP
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