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

Cutting-tool operation reliability evaluation method based on SVD transformation and support vector space

A support vector, reliability technology, used in character and pattern recognition, special data processing applications, instruments, etc.

Inactive Publication Date: 2018-01-09
CHINA THREE GORGES UNIV
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a tool operation reliability evaluation method based on SVD transformation and support vector space, aiming to solve the tool reliability evaluation problem under the condition of a single small batch sample

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
  • Cutting-tool operation reliability evaluation method based on SVD transformation and support vector space
  • Cutting-tool operation reliability evaluation method based on SVD transformation and support vector space
  • Cutting-tool operation reliability evaluation method based on SVD transformation and support vector space

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] For CNC lathe processing tools, the failure definition and life estimation in ISO3685, ISO8688, GB / T16461 are based on a certain point value in the wear area. The most commonly used index is the wear amount Vm of the flank. These data are It needs to be acquired through an industrial microscope or a CCD camera. There are disadvantages such as high price, intermittent measurement, stoppage interference processing, etc., and it is difficult to perform real-time dynamic evaluation of its operating status. This patent uses vibration signals as the research object to characterize the wear process of the tool, that is, the vibration signals are processed to obtain fault characteristics and complete failure. evaluation process.

[0072] Experimental process: The machine tool model used in this experiment is Taiwan Youjia Seiki FTC-20 CNC lathe, and the tool model used in the experiment is CNMG120408-HM. In the experiment, the MZDH0670 series video microscope system was used t...

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 cutting-tool operation reliability evaluation method based on SVD transformation and support vector space. The method is characterized in that the method includes: sample data acquisition and significant-feature-quantity extraction, wherein vibration signal data are extracted; SVD dimension reduction, wherein signal reconstruction is carried out on high-dimensional feature quantity indexes, valid components are extracted, and a data dimension number is reduced; support vector space hypersphere construction, wherein the sample data are mapped into the high-dimensionalhypersphere space; and relative-distance index calculation and reliability index definition, wherein a relative distance of a test sample point and a support vector data space hypersphere is calculated, a relative distance index is mapped to [0, 1] through an introduced membership function, and thus an operation reliability index is obtained. The method has the advantage of aiming to solve the cutting-tool reliability evaluation problem under a condition of single equipment or small-batch samples.

Description

technical field [0001] The invention relates to proposing an operation reliability evaluation method based on support vector description, and establishes direct connection between operation state information and reliability. , especially related to the tool operation reliability evaluation method based on SVD transformation and support vector space. Background technique [0002] As an important part of the CNC machine tool, the reliability of the cutting tool will inevitably affect the processing efficiency and stability of the entire machine tool. Accurately assessing the reliability of the tool to make a replacement strategy in time can not only reduce production costs and bring significant economic benefits, but also ensure the processing quality of the workpiece. Many scholars have made a lot of tentative work in tool reliability evaluation. M.Aramesh et al. took tool wear, cutting speed and feed rate as covariates, established a proportional hazard model with Weibull d...

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 Applications(China)
IPC IPC(8): G06F17/50G06K9/62
Inventor 陈保家肖文荣陈法法刘浩涛聂凯汪新波邱光银沈保明
Owner CHINA THREE GORGES 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