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

Electric heat conduction device for self-pressing riveting

A technology of self-piercing riveting and conducting device, which is applied in the field of automobile body manufacturing, can solve the problems of difficulty in forming effective joints, difficulty in plastic deformation, influence of riveting gun heads, etc., and achieves the effects of improving connection quality, compact and lightweight device, and easy disassembly.

Inactive Publication Date: 2019-08-02
SHANGHAI UNIV OF ENG SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing methods of body connection have the following disadvantages: in the traditional body connection, resistance spot welding is one of the main forms; The large difference in thermal expansion coefficient and the tendency to form hard and brittle intermetallic compounds during welding make it difficult to form effective joints
However, when riveting aluminum-steel, etc., due to the high strength of high-strength steel and the difficulty of plastic deformation, the riveted joint is not well formed, the connection quality is not high, and sometimes it even affects the riveting gun head, so it needs to be improved

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
  • Electric heat conduction device for self-pressing riveting
  • Electric heat conduction device for self-pressing riveting
  • Electric heat conduction device for self-pressing riveting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like Figure 1-9 As shown, the present invention provides a technical solution: an electric heat conduction device for self-piercing riveting, including a base 12 and a bracket 15, the bracket 15 is located at the upper end of the base 12, and the upper and lower ends of the bracket 15 are respectively connected with upper The cylinder 1 and the lower cylinder 6, the upper cylinder 1 and the lower cylinder 6 are symmetrically arranged, the upper cylinder guide rod base 2 and the lower cylinder guide rod base 5 are respectively installed on the upper cylinder 1 and the lower cylinder 6, and the upper cylinder guide rod base 5 is installed respectively. The cylinder guide rod base 2 and the lower cylinder guide rod base 5 are respectively connected with the upper cylinder 1 and the lower cylinder 6 through the guide rod base connecting hole 24, and the upper cylinder guide rod base 2 and the lower cylinder guide rod base 5 are respectively connected with The upper red cop...

Embodiment 2

[0032] like Figure 1-9 It is basically the same as Example 1, and further, when the thickness of the aluminum plate becomes 2 mm, since the overall thickness of the thin plate to be riveted becomes larger, it is necessary to rotate the second bolt on the side of the upper copper plate 3 and the lower copper plate 10. Adjust the clamping holes 17 of the 18 pairs, and re-adjust the positions of the upper and lower carbon rods 8 and 11, so that when the cylinder guide rod reaches the maximum stroke, the upper carbon rods 8 and 11 are respectively pressed against the upper and lower sides of the riveting point. , After the adjustment is completed, turn on the switch of the external control cabinet, the upper cylinder 1 and the lower cylinder 6 work at the same time, at this time, the upper brush 14 and the lower brush 16 are energized for 1.2s, and a strong current is applied to the plate to be riveted. The switch of the external source control cabinet is turned off, the air cyli...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an electric heat conduction device for self-pressing riveting. The device comprises a base and a bracket; the bracket is located at the upper end of the base; an upper air cylinder and a lower air cylinder are connected with one side of the upper end and one side of the lower end of the bracket; the upper air cylinder and the lower air cylinder are arranged symmetrically; the upper air cylinder and the lower air cylinder are provided with an upper air cylinder guide rod base and a lower air cylinder guide rod base correspondingly; and the upper air cylinder guide rod base and the lower air cylinder guide rod base are connected with the upper air cylinder and the lower air cylinder through guide rod base connecting holes correspondingly. The electro-plastic effect and the thermal effect of metal materials are utilized, a high-density current is applied to the riveting point before riveting of dissimilar metal such as aluminum steel, so that high-strength steel and the like are more likely to be plastically deformed, rivets and plate members are more likely be interlocked firmly and mechanically, the connecting quality of the joints during riveting of dissimilar metal is improved, in addition, the device is small, light and convenient to disassemble, an adjustable base can be matched with various gantries, and the device is applicable to various riveting equipment.

Description

technical field [0001] The invention relates to the technical field of automobile body manufacture, in particular to an electric heat conduction device for self-piercing riveting. Background technique [0002] With the rapid development of my country's automobile industry, the number of automobiles is also increasing year by year, and the increase in the number of automobiles has also caused increasingly serious environmental problems to the environment. This puts forward higher requirements for the environmental protection and fuel economy of automobiles. Therefore, in recent years, automobile lightweight and energy saving and emission reduction are also the focus of research by various automobile manufacturers. Lightweight alloy materials such as magnesium and aluminum have low density and low specific strength. High and gradually applied to the manufacture of body structures; at the same time, advanced high-strength steel has excellent comprehensive mechanical properties,...

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): B21J15/02B21J15/38
CPCB21J15/025B21J15/38
Inventor 邢彦锋李小龙陆瑶高陈浩刘文杰
Owner SHANGHAI UNIV OF ENG SCI
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