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A method for automatic generation of 3D process model of shaft machining parts

A process model and automatic generation technology, applied in 3D modeling, instruments, data processing applications, etc., can solve the problems of complex segmentation and combination algorithms, cumbersome operation steps, low accuracy, etc., to reduce algorithm complexity and simplify operations. process, improve efficiency

Active Publication Date: 2021-11-26
XIDIAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for automatically generating a three-dimensional process model of a shaft machining part. Through operations such as segmentation of the three-dimensional model of the part and Boolean operations, the cutting body is directly decomposed into a process cutting body, and then the shaft is quickly and accurately generated. Three-dimensional process model of parts to overcome the problems of complex segmentation and combination algorithms, cumbersome operation steps, low efficiency and low accuracy in the prior art

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  • A method for automatic generation of 3D process model of shaft machining parts
  • A method for automatic generation of 3D process model of shaft machining parts
  • A method for automatic generation of 3D process model of shaft machining parts

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Embodiment Construction

[0040] Such as figure 1 As shown, a method for automatically generating a three-dimensional process model of a shaft machined part is characterized by:

[0041] 1) Input the 3D design feature model of the shaft part and the blank model corresponding to the part model;

[0042]2) By preprocessing the three-dimensional design feature model of the part, the sequence of candidate segmentation surfaces and the processing method chain of each main processing surface are obtained;

[0043] 3) Carry out Boolean subtraction operation between the part design feature model and the blank model to obtain the cutting body;

[0044] 4) Execute the mapping and segmentation operation on the cutting body to obtain the cutting body of each process;

[0045] 5) Through the processing feature mapping operation, the process cutting body is mapped to the processing feature, and then the process model is generated through operations such as sorting and Boolean operations.

[0046] figure 2 It is...

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Abstract

The invention belongs to the field of computer-aided process planning, in particular to a method for automatically generating a three-dimensional process model of a shaft machined part, which directly decomposes a cutting body into a process cutting body through operations such as segmentation of the three-dimensional model of the part and Boolean operations, and then quickly Accurately generate a three-dimensional process model of shaft parts to overcome the problems of complex segmentation and combination algorithms, cumbersome operation steps, low efficiency and low accuracy in the prior art.

Description

technical field [0001] The invention belongs to the field of computer-aided process planning, in particular to a method for automatically generating a three-dimensional process model of a shaft machined part. Background technique [0002] In the field of mechanical processing (referred to as "machining"), 3D CAD and CAM systems have been widely used in engineering, but compared with them, most CAPP systems still stay in the situation where 2D drawings are the mainstay and 3D models are supplementary. , leading to the disconnection of CAD and CAM information, becoming a bottleneck restricting the integration of 3D CAD / CAPP / CAM. The process model is an intermediate model formed after each processing process is completed, which can reflect the processing evolution state of the geometric structure of the part. Using the three-dimensional process model as the information carrier of machining process, it can intuitively and efficiently assist craftsmen in process planning and gui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/20G06T17/00G06Q10/06G06Q50/04
CPCG06Q10/06316G06Q50/04G06T17/00G06F30/17G06F30/20Y02P90/30
Inventor 张贺邵晓东何东
Owner XIDIAN UNIV
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