Non-destructive riveting device and non-destructive riveting method for CFRP component

A riveting device and component technology, applied in the field of aerospace manufacturing, can solve problems such as inconvenient riveting, falling, and deviation, and achieve the effects of avoiding riveting damage, reducing weight, and preventing slipping and falling off

Active Publication Date: 2021-06-15
SICHUAN UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flat washer used in this invention cannot be fixed during the installation process, causing the washer to easily slip, dislocate or even fall during riveting installation, which is inconvenient for riveting, and the riveted joint increases the extra weight of the flat washer
The invention with application number 201911380498....

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
  • Non-destructive riveting device and non-destructive riveting method for CFRP component
  • Non-destructive riveting device and non-destructive riveting method for CFRP component
  • Non-destructive riveting device and non-destructive riveting method for CFRP component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention will be further described below in conjunction with accompanying drawing:

[0042] like Figure 1-Figure 7 As shown, a non-destructive riveting device for CFRP components includes a top iron 1, a rivet 2, a CFRP component 3, a countersunk washer 4, a positioning sleeve 5, a riveting die 6, and a bushing with a countersunk head 7. Rivet 2, top iron 1 is used to rivet and hold the head end of rivet 2, rivet 2 passes through CFRP component 3, countersunk washer 4, positioning sleeve 5, countersunk washer 4 is located above CFRP component 3, and positioning sleeve 5 is located on the countersunk head Above the washer 4, a bushing 7 with a countersunk head is arranged between the CFRP member 3 and the rivet 2, and a riveting die 6 is arranged above the positioning sleeve 5.

[0043] Preferably: the countersunk washer 4 is a circular gasket with a conical countersunk hole in the middle, which is used for riveting of CFRP ordinary through holes. Fitting...

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 non-destructive riveting device and a non-destructive riveting method for a CFRP component. The non-destructive riveting device for the CFRP component comprises jacking iron, a rivet, the CFRP component, a countersunk head gasket, a positioning sleeve, a riveting die and a bush with a countersunk head, the rivet is arranged above the jacking iron and penetrates through the CFRP component, the countersunk head gasket and the positioning sleeve. The countersunk head gasket is located above the CFRP component, the positioning sleeve is located above the countersunk head gasket, the bush with the countersunk head is arranged between the CFRP component and the rivet, and the riveting die is arranged above the positioning sleeve. According to the riveting method, the countersunk head gasket and the bush with the countersunk head are adopted, a buffering and restraining area is provided for deformation of a rivet head part, a large amount of deformation acting force of the rivet acts in a groove of the countersunk head gasket, radial expansion of a rivet rod in the CFRP component is limited, only small amount of uniform deformation occurs, and riveting damage to the CFRP component is avoided.

Description

technical field [0001] The invention relates to the technical field of aerospace manufacturing, in particular to a non-destructive riveting device and a non-destructive riveting method for CFRP components. Background technique [0002] Composite materials are widely used in the fields of aviation, aerospace, energy engineering, automobile manufacturing, wind power generation and shipbuilding due to their excellent material structural properties, high specific strength and specific modulus, and remarkable designability. Advanced composite materials represented by carbon fiber reinforced resin matrix composites (CFRP) have the advantages of high specific strength, high specific stiffness, tailorable design and structural integral molding, etc., which can reduce the weight of aircraft structures by 10% to 40%, and reduce structural design. The cost is 15% to 30%. Therefore, the amount of use on new aircraft has been greatly increased, and the scope of application has also been ...

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
IPC IPC(8): B29C65/60
CPCB29C65/601B29C66/721
Inventor 左杨杰杨洲邓金风李嘉安陈俊锜
Owner SICHUAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap