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A Method for Constructing Process Geometric Model Based on NC Machining Programming

A technology of geometric models and construction methods, applied in simulators, program control, computer control, etc., can solve problems such as immature research on feature recognition technology, difficulty in defining and extracting complex features, and restrictions on the popularization and application of 3D process design systems. To achieve the effect of improving the level of process design

Active Publication Date: 2020-03-24
沈阳昊成智能装备有限公司
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Problems solved by technology

[0004] At present, the process geometric model generation scheme is mainly based on feature recognition technology, and relevant progress has been made. However, because the current research on feature recognition technology is not very mature, it is difficult to define and extract some complex features, and it is difficult to automatically generate process geometric models. The efficiency is low, which limits the popularization and application of 3D process design system

Method used

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  • A Method for Constructing Process Geometric Model Based on NC Machining Programming
  • A Method for Constructing Process Geometric Model Based on NC Machining Programming
  • A Method for Constructing Process Geometric Model Based on NC Machining Programming

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Embodiment Construction

[0046] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] A process geometric model construction method based on NC machining programming, based on the CAD / CAM system platform, provides a fast modeling method for the three-dimensional process design of aeronautical structural parts in the three-dimensional process management module.

[0048] This embodiment is aimed at the three-dimensional process parts that need to be compiled, such as figure 1 As shown, a 3D process geometric model is constructed using a process geometric model construction method based on NC machining programming, such as figure 2 As shown, the specific steps are as follows:

[0049] Step 1: Create the initial geometric model of the current process,...

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Abstract

The invention provides a numerical control machining programming-based working procedure geometric model construction method and belongs to the mechanical part process design technical field. According to the method, the geometric model of the last working procedure is extracted and adopted as the initial geometric model of the current working procedure; the simulation function of the numerical control machining program of a CAD / CAM system and a secondary development module are adopted to automatically extract a machining tool path envelope, and the envelope is subtracted from the initial geometric model of the current working procedure, so that the geometric model of the current working procedure is generated; and the geometric models of all working procedures are generated circularly. With the numerical control machining programming-based working procedure geometric model construction method adopted, the working procedure geometric models can be constructed automatically and rapidly,a rapid modeling method is provided for the three-dimensional process design of aeronautical structural components in a three-dimensional process management module, and therefore, the existing numerical control machining capability of an enterprise can be fully utilized to improve a mechanical part design level.

Description

technical field [0001] The invention relates to the technical field of process design of mechanical parts, in particular to a method for constructing a process geometric model based on numerical control machining programming. Background technique [0002] At present, a lot of research is being done on the application technology of Model Based Definition (MBD) at home and abroad, and some 3D process design software and tools have been developed. Information process model to support the whole process of design and manufacture. [0003] The 3D process design is realized through the 3D process management module in the collaborative development platform, and the craftsman can carry out the design of the 3D process specification on the basis of the designed MBD model. In the process of 3D process design, the process geometric model is used as the geometric information carrier of 3D process, and its creation efficiency directly affects the quality of the entire 3D process design s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4093
CPCY02P90/02
Inventor 孟飙闫婧曲学军武大伟
Owner 沈阳昊成智能装备有限公司
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