Quick labeling method and device for stepped holes in three-dimensional model

Abstract

The invention discloses a quick labeling method and device for stepped holes in a three-dimensional model. The method comprises the steps: recognizing the features of a to-be-labeled stepped hole; matching the features of the stepped hole with a template in a database, and outputting a corresponding labeling template; inputting annotation information into the annotation template; and calling an annotation function in a three-dimensional model according to the annotation information in the annotation template, and annotating the stepped hole. The labeling method is simple and convenient, the labeling time of the stepped hole can be effectively shortened, the labeling efficiency is improved, and compared with an existing labeling method of the stepped hole, the labeling time can be shortenedby at least 50%.

Description

technical field [0001] The invention relates to the field of engineering drawing, in particular to a method and device for quickly marking stepped holes in a three-dimensional model. Background technique [0002] At present, the annotation methods of 3D models mainly include 2D engineering drawing annotation and 3D annotation. Two-dimensional engineering drawings require a lot of views and annotations to fully define the structure and accuracy requirements of box-type parts. The efficiency of annotation is low and error-prone, and the reading of drawings requires high requirements for engineers. Therefore, large enterprises at home and abroad are gradually adopting 3D annotation to replace 2D engineering drawing. 3D annotation refers to directly marking product manufacturing information (PMI) on the 3D model, and then transferring the product manufacturing information to subsequent modules such as CAM, CAE, and MES. , which not only reduces the intermediate drawing links an...

AI Technical Summary

Problems solved by technology

Two-dimensional engineering drawings require a lot of views and annotations to fully define the structure and accuracy requirements of box-type parts. The efficiency of annotation is low and error-prone, and the reading of drawings requires high requirements for engineers.

[0003] However, under 3D labeling, the traditional marking method for stepped holes is: first manually create the section plane of the stepped hole, and then select the lines on the section surface to mark the dimensions on the hole one by one, such as depth dimension, diameter dimension and angle dimension, etc. The method still needs to spend a lot of time for engineers to mark and proofread, and the efficiency needs to be improved

[0004] However, due to the complex structure of 3D parts, especially 3D box parts, even with 3D annotation, engineers still need to spend a lot of time on annotation and proofreading

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