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Numerical control machining feature customizing method

A processing feature, custom technology, applied in the direction of program control, computer control, general control system, etc., can solve problems such as limited application range

Inactive Publication Date: 2016-01-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of fixed processing feature definition and limited application range in the NC machining process of complex structural parts, invent a user-defined method for NC machining features of complex structural parts, realize user-defined processing features, and improve processing features Applicability, improving the efficiency and quality of NC programming for complex structural parts

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Such as Figure 1-5 shown.

[0024] A method for custom processing features of numerical control processing, the process of which is as follows figure 1 As shown, based on the 3D CAD model of the part, the user first customizes the geometric shape of the processing features according to the manufacturing resources, part structure and programming habits of the enterprise, and then clicks the geometric elements of the 3D model of the part through the interactive interface to automatically record all Select the topological relationship between geometric elements and the properties of faces and edges, and the user defines the key geometric parameter information and calculation method of the processing feature, and assigns a unique identifier to each custom processing feature, and the user interactively inputs the information of the processing featur...

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Abstract

The invention discloses a numerical control machining feature customizing method. According to the method, a user customizes a geometric shape and a machining process scheme of a machining feature according to machining resources of an enterprise, the structure of a part and the programming habit based on a three-dimensional CAD (Computer Aided Design) model of the part. The user customizes geometric elements of the machining feature and a connection relationship thereof, and a matching rule between geometric and machining processes is established according to key process parameters of the machining feature. A cutting parameter optimization model is established according to the information of the customized machining feature, to optimize the customized machining feature. An analytic program is established to accomplish association between the geometric elements of the customized machining feature and the machining process and realize automatic programming of numerical control machining of the customized machining feature, and a position to be detected and an adaptive adjustment strategy in the machining process are set out. The method can improve the programming efficiency and the programming quality of a complex structural member, shorten the manufacturing period of a part and simultaneously realize accumulation of enterprise process knowledge.

Description

technical field [0001] The present invention relates to a programming method for NC machining of parts, in particular to a method and application for customizing the NC machining features of complex structural parts, mainly for customizing the processing features of complex structural parts according to the characteristics and requirements of user parts, and realizing A method for automatically generating tool paths belongs to the field of CAD / CAM / CAPP. Background technique [0002] At present, with the rapid development of my country's aerospace technology, the application of CNC machine tools to process complex structural parts is becoming more and more extensive. The NC machining process of complex structural parts is complicated, the process preparation period is long, and the complex structural parts have the characteristics of multiple varieties and small batches, which requires the NC machining of complex structural parts to have a strong rapid response ability. [0...

Claims

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Application Information

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IPC IPC(8): G05B19/4093
CPCG05B19/40932G05B2219/35001
Inventor 李迎光刘长青
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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