Method for establishing bearing part library based on CAD secondary development

A technology for secondary development and establishment of methods, applied in the field of CAD library construction, can solve the problems of time-consuming and laborious, and achieve the effect of improving design efficiency and degree of automation

Active Publication Date: 2020-02-21
XI'AN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for establishing a bearing part library based on CAD secondary development, which solves the problem of time-consuming and labor-intensive problems caused by repeated reference to manuals when CAD is used to draw bearings in the prior art

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  • Method for establishing bearing part library based on CAD secondary development
  • Method for establishing bearing part library based on CAD secondary development
  • Method for establishing bearing part library based on CAD secondary development

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Embodiment Construction

[0049] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0050] A method for establishing a bearing part library based on CAD secondary development, such as figure 1 shown, including the following steps:

[0051]Step 1: According to the national standard data, extract the main parameters of the bearing, and establish the CAD model part size parameter database;

[0052] Step 2: Draw a standard sample of the bearing through the bearing type and main parameters, and make a slide file;

[0053] Step 3: Determine the initial point position and the number and relative position of the characteristic points of each type of bearing through the standard sample drawing model of the bearing;

[0054] Step 4: Through the position of the feature point and the main parameters, analyze the operation relationship between the position of each feature point and the main parameters, and est...

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Abstract

The invention provides a method for establishing a bearing part library based on CAD secondary development, which comprises the following steps: extracting all types and main size parameters of a bearing according to a national standard manual, and establishing a CAD bearing model parameter database; establishing a mathematical operation model and establishing a man-machine dialog box model by determining the number and relative positions of feature points of a bearing; by designing a driving program, realizing automatic modeling of various types of bearings; verifying the feasibility of the method through a specific example; and finally, adding the method to a CAD main interface as a drawing function of CAD. According to the method, parameterized creation of the bearing assembly CAD modelin the two-dimensional drawing design process is achieved, the design efficiency of engineering designers can be greatly improved, and meanwhile the method can be expanded to other fields for establishing standard part libraries.

Description

technical field [0001] The invention belongs to the technical field of CAD library building, and relates to a method for building a part library based on CAD secondary development, in particular to a method for building a bearing part library. Background technique [0002] AutoCAD is currently the most widely used general-purpose computer-aided design and drawing software in China, with powerful two-dimensional drawing capabilities and editing functions. But AutoCAD itself does not have a standard parts library that meets the national standard of our country. The method for designers to draw bearings on CAD is to first query the national standard, and then manually draw according to the found data and need to consult the manual repeatedly. This is because the drawing method of bearings is strictly regulated in the national standard, which makes bearing drawing more cumbersome . Therefore, the selection and drawing of bearings takes a lot of time, which is very inconvenient...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F111/20
CPCY02P90/30
Inventor 许涛闫轩宋辛辛戴雨志
Owner XI'AN POLYTECHNIC UNIVERSITY
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