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

Vision measurement device of sheet forming limit curve

A technology of forming limit and visual measurement, applied in the field of machining, it can solve the problems of curve change, spending a lot of time, small mesh, etc., and achieve the effect of quick acquisition and low cost

Inactive Publication Date: 2014-08-06
XI AN JIAOTONG UNIV
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the traditional method include: (1) the curves where various strains occur should be located, but this will take a lot of time (many tests are done for each width); (2) the curves need to be changed after fracture; (3) the simulation The difference between the two curves needs to be compensated, and a certain margin must be given; (4) Some materials require smaller meshes than usual

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
  • Vision measurement device of sheet forming limit curve
  • Vision measurement device of sheet forming limit curve
  • Vision measurement device of sheet forming limit curve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and exemplary embodiments. It should be understood that the exemplary embodiments described here are only used to explain the present invention, and are not intended to limit the applicable scope of the present invention.

[0023] Such as figure 1 As shown, the present invention is a visual measurement device for sheet metal forming limit curve, which is composed of a speckle dynamic strain measurement system and a cupping forming test machine, wherein the speckle dynamic strain measurement system includes a binocular stereo measuring head 1; The protrusion forming testing machine includes a measuring head support 2, an integral frame 3, a cup forming punching device 4 and a built-in punching machine (not shown).

[0024] In a specific embodiment, the speckle dynami...

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 vision measurement device of a sheet forming limit curve. The vision measurement device comprises a dynamic speckle strain measurement system and a cupping forming tester, wherein the dynamic speckle strain measurement system comprises a binocular stereoscopic measuring head (1); and the cupping forming tester comprises a measuring head bracket (2), an integrated rack (3), a cupping forming stamping device (4) and a built-in punching machine. The vision measurement device can perform high-precision measurement to obtain high-precision material data, can rapidly obtain the measurement results and is low in cost.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a visual measuring device for sheet metal forming limit curves. Background technique [0002] The Forming Limit Curve (FLC), also known as the Forming Limit Diagram (FLD), is used to determine the degree of deformation that a specified material can achieve when it is stretched, bulging, or a combination of stretching and bulging. Sheet metal forming limit curve FLC is an important index data of sheet metal forming. It is extremely troublesome to obtain FLC with traditional measuring devices. [0003] The disadvantages of the traditional method include: (1) the curves where various strains occur should be located, but this will take a lot of time (many tests are done for each width); (2) the curves need to be changed after fracture; (3) the simulation The difference between the two curves needs to be compensated, and a certain margin must be given; (4) Some materi...

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): G01N3/28
Inventor 梁晋魏斌张东东郭翔于淼
Owner XI AN JIAOTONG 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