Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

3D Model-Based Dimensional Chain Checking Method

A technology of 3D model and dimension chain, applied in the field of dimension chain verification, can solve the problems of low efficiency, achieve the effects of improving efficiency, rapid generation and optimization promotion, and solving analysis and calculation problems

Inactive Publication Date: 2016-02-24
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the inefficiency of the existing dimensional chain checking method, the present invention provides a dimensional chain checking method based on a three-dimensional model

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 3D Model-Based Dimensional Chain Checking Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] refer to figure 1 The present invention will be described in detail.

[0017] In this example, the dimensional chain of a certain type of shaft is checked, and the detailed features irrelevant to the research are omitted in the model, and the dimensional chain is composed of four pairs of dimensions.

[0018] First select the dimension that needs vector labeling, and select the start point and end point for vector labeling. Then select the closed loop in the dimension chain, select "Check Design Dimensions" and click "Check" to check the size. Compensation rings can also be set for dimensions that do not comply with the dimensional chain rules, and the upper or lower tolerances can be adjusted to make them comply with the dimensional chain rules. Select the specified process folder, and also generate a visual diagram of the dimensional chain to display the calibration results.

[0019] In summary, the 3D dimensional chain check of the whole process includes the follo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a dimension chain checking method based on three-dimensional model and aims to solve the technical problem that a conventional dimension chain checking method is low in efficiency. The technical scheme is that a vector dimension system based on a fixed datum is established by using a space nature of the three-dimensional model. Vector annotation is performed on a three-dimensional dimension, so that the dimension required to be checked under a three-dimensional environment has a vector characteristic, and further automatic checking of a dimension chain is realized according to the principle that the vector sum is zero; and function modules such as automatic judgment of increase and decrease of rings, tolerance modification real-time update, dimension chain check record queries, check record report generation, inter-process dimension chain visual display and the like are provided, so that a dimension chain analysis calculation problem can be solved conveniently, rapidly and accurately. The dimension chain checking efficiency is improved, and an effect for facilitating rapid generation and optimization of a product process is realized. The method can be completed across platforms, and dimension chain checking can be performed through resume vector annotation systems in different modeling software.

Description

technical field [0001] The invention relates to a dimension chain checking method, in particular to a dimension chain checking method based on a three-dimensional model. Background technique [0002] In the design, manufacture, and assembly of mechanical products, in order to represent the size information of the product, it is necessary to mark a large number of sizes, and the size sets are related to each other according to certain rules to form a size chain. Whether it is in the design and manufacture of mechanical products, or in the analysis of performance and quality parameters, the dimensional chain theory has a wide range of applications. Among them, the check of the dimensional chain is an important means of tolerance analysis in the process design stage, and the quality of the check method directly determines the quality of the process design. For multi-ring complex dimensional chains, manual calculation is cumbersome and error-prone. The purpose of people studyi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 万能何剑瑞胡栋刘蔚昕王聪
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com