Laser shock plastic rivet connecting device and method

Abstract

The invention discloses a laser shock plastic rivet connecting device. The laser shock plastic rivet connecting device comprises a blank holder, a laser generator, a first connecting rod, a laser absorption laminate, a laser restraint laminate, a first inclined hole, an infrared thermometer, a second inclined hole, an infrared heater, a base and a cooling water cavity, wherein the blank holder iscoaxially provided with a first through hole, a second through hole and a third through hole which communicate with one another in sequence; the laser generator is movably arranged in the first through hole and the second through hole; the first connecting rod is connected into the third through hole through threads, and one end of the first connecting rod is fixedly connected with the laser generator; the laser absorption laminate is movably installed in the first through hole; the laser restraint laminate is movably installed in the first through hole, is stacked on the laser absorption laminate and is spaced from the laser generator; the first inclined hole is formed in the side wall of the blank holder; the infrared thermometer is arranged in the first inclined hole; the second inclined hole is spaced from the first inclined hole; the infrared heater is arranged in the second inclined hole; the base is coaxial with the blank holder, and a female die cavity is formed in the center of the base; and the cooling water cavity is formed in the base and surrounds the female die cavity.

Description

technical field [0001] The invention belongs to the technical field of glue riveting connection of dissimilar materials, in particular to a laser impact glue riveting connection device and method. Background technique [0002] With the continuous development and innovation of the industry, the lightweight and miniaturization of automobiles is an inevitable development trend, and materials such as aluminum and magnesium have been widely used in the body. The use of new lightweight materials is certainly one aspect, and more advanced material connection technology is also one of the important factors affecting lightweight. Advanced material linking technologies such as self-piercing riveting, rivetless riveting technology, bonding technology and friction stir welding have been widely used in recent years. [0003] However, the commonly used bonding methods are poor in neutrality, and the adhesive is brittle and prone to cracks; due to the large deformation of the plate, the r...

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Problems solved by technology

[0003] However, the commonly used bonding methods are poor in neutrality, and the adhesive is brittle and prone to cracks; due to the large deformation of the plate, the riveted joint has residual stress, which is prone to fatigue damage and stress concentration in subsequent use; Friction stir welding is not suitable for the formation of small joints due to its large energy consumption and the large area required for the overlapping parts

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