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Self-punching bond-riveting connecting device and bond-riveting method

A riveting and self-piercing technology, which is applied in the direction of furnaces, furnace types, heat treatment equipment, etc., can solve the problems of inability to form effective joints and difficulty in deformation of ultra-high-strength steel, so as to increase joint connection strength and reduce heat convection between plates and heat radiation, the effect of firm connection

Inactive Publication Date: 2016-04-06
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this invention is to design and develop a self-piercing sticky riveting connection device based on the semi-hollow self-piercing riveting connection technology. By introducing the tempering and annealing characteristics of metal materials, local tempering heat treatment is performed on ultra-high-strength steel, and the riveting is properly reduced. The strength of the ultra-high-strength steel near the riveting point greatly improves the ductility of the ultra-high-strength steel near the riveting point, and solves the problem that the ultra-high-strength steel is difficult to deform and cannot form an effective joint

Method used

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  • Self-punching bond-riveting connecting device and bond-riveting method

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0048] Such as figure 1 As shown, the present invention provides a self-piercing adhesive riveting connection device including: a composite die 100, a composite blank holder 200, a thermally conductive electrode 300 and a punch 400

[0049] Such as Figure 2-3 As shown, the composite binder ring 200 is set opposite to the composite die 100, and the center of the composite binder ring 200 is provided with a through hole, and the bottom surface of the composite binder ring 200 is connected to the top surface of the composite die 100 in a contactable manner. On the bottom ring surface of the edge ring 200, a plurality of rectangular grooves 210 with the same structure are provided from the outside to the inside. The through hole at the center of the binder ring 200 is not conn...

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Abstract

A self-punching bond-riveting connecting device comprises a compound female die, a compound edge pressing ring, heat conduction electrodes and a punch, wherein an annular groove is formed in the compound female die, the compound edge pressing ring is opposite to the compound female die in the vertical direction, the compound edge pressing ring can move in the vertical direction and is used for pressing to-be-riveted pieces, the heat conduction electrodes are arranged at the bottom of the compound edge pressing ring and the upper portion of the compound female die and can heat the different to-be-riveted pieces independently, and the punch is a solid circular structural piece, is arranged in a central hole of the compound edge pressing ring and can slide up and down in the axial direction of the central hole. The expanding performance of super-strength steel nearby riveting points is greatly improved, and the problems that super-strength steel is difficult to deform and effective connectors can not be formed are solved. The invention further provides a self-punching bond-riveting connecting method. By precisely controlling the punching speed of the punch, the requirements for the strength of the rivet, the punch riveting capacity of the device and the rigidity of a C-shaped frame of a riveting gun are lowered, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of high-strength steel riveting, in particular to a self-piercing adhesive riveting connection device and a method for realizing punching adhesive riveting. Background technique [0002] The development of the automobile industry has brought enormous pressure on energy, climate, and the environment. Reducing fuel consumption, energy conservation and emission reduction has become an urgent problem for Chinese automobiles, and automobile lightweight has become an important means to solve this problem. [0003] Lightweight materials such as high-strength steel plates, aluminum alloys, and magnesium alloys have replaced traditional steel plates and become the main method for achieving lightweight automobiles, while the application of new materials poses a huge challenge to automotive connection technology. When traditional resistance spot welding is used to connect high-strength steel and aluminum alloy, due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J15/04B21J15/38C21D1/34C21D9/00
CPCC21D1/34C21D9/0068B21J15/04B21J15/38C21D2221/00B21J15/025B21J15/08B21J15/36
Inventor 庄蔚敏张凯希胡哲李冰娇解东旋敖文宏徐纪栓杨冠男刘西洋
Owner JILIN UNIV
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