A Calculation Method for Adaptive Dynamic Evolution of Rough Machining Process

A dynamic evolution and self-adaptive technology, applied in special data processing applications, geometric CAD, etc., to achieve the effect of improving the efficiency of NC programming, reducing the burden, and ensuring continuity

Active Publication Date: 2021-12-10
HOHAI UNIV CHANGZHOU
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Problems solved by technology

[0003] In order to overcome the above deficiencies, the present invention proposes an adaptive dynamic evolution calculation method for the rough machining process, which is oriented to complex cavity parts, and adopts the adaptive evolution mechanism of the rough machining process to eliminate the interference and undercut problems in the rough machining process and ensure The penetration of the rough machining process situation

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  • A Calculation Method for Adaptive Dynamic Evolution of Rough Machining Process
  • A Calculation Method for Adaptive Dynamic Evolution of Rough Machining Process
  • A Calculation Method for Adaptive Dynamic Evolution of Rough Machining Process

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Embodiment Construction

[0051] In order to enable those skilled in the art to better understand the technical solutions in the application, the technical solutions in the embodiments of the application are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the application, and Not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0052] An adaptive dynamic evolution calculation method for a rough machining process, the method includes the following steps:

[0053] (a) Through the dynamic evolution calculation of complex cavity rough machining area MR and residual area UR guided by the central axis of the feature, the complex profile of the feature is divided into multiple simple sub-profiles, and then the processing area MR is obtained by offsetting the simple sub-profiles ...

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Abstract

The invention discloses an adaptive dynamic evolution calculation method for a rough machining process, which is used for machining complex cavity parts. The method firstly establishes a local The inscribed circle movement represents the model to guide the calculation of the primary roughing area and residual area of ​​the feature. The type of the residual region is then identified based on its axial topology. Secondly, according to the primary rough machining area and residual area of ​​the feature, the dynamic evolution model of the rough machining area and residual area of ​​the part based on the initial process plan is established. Finally, an adaptive evolution mechanism of the rough machining process driven by the process design intention is proposed to eliminate the interference and undercut problems in the rough machining process and ensure the continuity of the rough machining process scenarios. The present invention determines the self-adaptive evolution method of the rough machining process according to the type of the residue and its time, so as to make up for the deficiencies of the existing methods in terms of geometric analysis, reduce the burden of process designers, and improve the efficiency of numerical control programming.

Description

technical field [0001] The invention relates to an adaptive dynamic evolution calculation method for complex cavity parts, and belongs to the field of feature-based numerical control process design and reuse in the manufacturing industry. Background technique [0002] In recent years, content-based 3D CAD model retrieval technology has been extensively studied, and has achieved rich research results, which can help designers effectively find similar 3D geometry, and provide a new support for the refined reuse of process data means. The basic principle is: through the correlation between 3D geometry and NC technology, similar NC technology is found from similar 3D geometry, and then through the reusability of NC technology, similar NC technology is transplanted to the query 3D geometry on the part to be manufactured, and through The adaptation of the similar NC process makes it suitable for querying 3D geometry. However, the existing 3D CAD model retrieval and NC process re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17
CPCG06F30/17
Inventor 黄瑞程云蒋俊锋陈正鸣
Owner HOHAI UNIV CHANGZHOU
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