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A 3D modeling method for l-extruded profiles with complex curved surfaces

A technology for extruded profiles and three-dimensional modeling, which is applied in the field of three-dimensional modeling of L extruded profiles, can solve problems such as low efficiency and complex process, and achieve the effect of simple method and improved three-dimensional modeling efficiency.

Active Publication Date: 2020-06-30
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is mostly used for modeling of profiles with sag, the process is more complicated and the efficiency is low

Method used

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  • A 3D modeling method for l-extruded profiles with complex curved surfaces
  • A 3D modeling method for l-extruded profiles with complex curved surfaces
  • A 3D modeling method for l-extruded profiles with complex curved surfaces

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Embodiment Construction

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail b...

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Abstract

The invention relates to an L-extrusion profile three-dimensional modeling method used for establishing a faying surface as a complex surface. The method comprises the steps that firstly, the flange faying surface of a profile is established, and the profile axis is determined; secondly, the axis is projected, and the projection line of the axis and parallel lines acquired through the translation of the flange width are used to acquire a flange surface; thirdly, the projection line of the axis is translated to both sides of acquire two parallel lines; the two parallel lines are used to cut the faying surface to acquire the bottom boundary surface of a web; the web is skewed to acquire the top boundary surface of the web; fourthly, the projection line of the axis on the top boundary surface of the web is used as the upper boundary line of the web surface, and the projection line of the axis on the flange faying surface is used as the lower boundary line of the web surface, so as to acquire the web surface through connection sweep; and fifthly, the flange surface and the web surface are thickened respectively to acquire flange and web entities, and the entities are merged to acquire a complete profile entity through end face cutting. According to the invention, the L-extrusion profile three-dimensional modeling method used for establishing the faying surface as the complex surface has the advantage of wide application range.

Description

technical field [0001] The invention belongs to the field of industrial design, in particular to a method for establishing a three-dimensional modeling of an L-extruded profile whose bonding surface is a complex curved surface. Background technique [0002] In the field of industrial design, it is necessary to establish a large number of 3D models of L-extruded profiles that fit curved surfaces. The existing three-dimensional modeling methods mainly include the following four types: a. The method of establishing the section profile of the profile and then sweeping the profile entity along the axis of the profile. This method has poor fit between the profile edge and the fitting surface, and the web Forming can only be successful when the mating surface is relatively straight and the curvature is not large; b. Cut the profile flange surface and web thickness surface on the flange bonding surface respectively, and thicken the flange thickness and web respectively height, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00
CPCG06T17/00
Inventor 樊海东张伟宁强搏孙茜夏甜
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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