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Quick modeling method for numerical control bent pipe three-dimensional model

A modeling method and three-dimensional model technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., to achieve the effect of improving revision efficiency and accuracy

Inactive Publication Date: 2018-01-19
JIANGXI HONGDU AVIATION IND GRP
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AI Technical Summary

Problems solved by technology

How to complete and quickly return to the design 3D model of the pipeline according to the physical size of the elbow has not been well resolved

Method used

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  • Quick modeling method for numerical control bent pipe three-dimensional model
  • Quick modeling method for numerical control bent pipe three-dimensional model

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Attached below figure 1 , 2 The present invention is described in detail:

[0032] 1. Obtain measurement data

[0033] Place the physical bent pipe in the CNC machine tool, measure the physical sample pipe, and obtain the length, turning radius, plane corner and space corner of the straight section of the sample pipe. A pipeline can be described by a pipeline (pipe centerline) and a pipe diameter. Where the pipeline is a space curve, such as figure 1 As shown, it consists of straight line segments AB, DE, GH, JK and arcs BD, EG, HJ. Through physical measurement, the lengths of the straight sections AB, DE, GH, JK and the radii of the arcs BD, EG, HJ of the physical sample tube can be obtained, as well as and , the angle between the ACF plane and the CFI plane. Extend the pipeline, and two adjacent pipelines intersect to obtain points C, F, and I. If the coordinates of A, B, C, F, and I are obtained, the pipeline can be restored in CATIA to generate a pipeline ...

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Abstract

The invention relates to a quick modeling method for a numerical control bent pipe three-dimensional model, and belongs to the field of digital aviation product modeling. According to the technical scheme, bent pipe data measurement is conducted with the help of a numerical control machine tool, data modeling is conducted according to measured data, constructed is carried out according to a spatial geometric relation, and construction of the numerical control bent pipe mathematic model is completed through a vector computing method. The quick modeling method has the advantages that quick revision modeling of the bent pipe three-dimensional model is achieved, and the revision efficiency and accuracy of an initially-designed three-dimensional model are improved.

Description

technical field [0001] The invention relates to a rapid modeling method for a three-dimensional model of a numerically controlled elbow, belonging to the field of digital modeling of aviation products. Background technique [0002] During the digital design process of aircraft pipelines, some 3D-designed pipelines cannot be directly used in production due to installation errors, deformation and other reasons during the assembly process, and the 3D model needs to be generated according to the actual size of the elbow. [0003] In order to improve the accuracy of the technical status of the pipeline, it is necessary to revise the initial design 3D model according to the actual production size of the aircraft pipeline. How to complete and quickly return to the design 3D model of the pipeline according to the physical size of the elbow has not been well resolved. Contents of the invention [0004] The purpose of the present invention is to provide a rapid modeling method for ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 万鹏代杰罗旭赟王珺刘金英沈鹏胡晓燕金媛媛李俭
Owner JIANGXI HONGDU AVIATION IND GRP
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