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Spiral rivet lock welding device and method for explosive shock forming

An explosive impact and spiral technology, which is applied in the direction of rivets, connecting members, and thin plate connections, can solve the problems of low dimensional accuracy of connection points, easy to produce circumferential rotation, easy to damage plates, etc., achieve fast speed, improve mechanical properties, The effect of high connection dimensional accuracy

Active Publication Date: 2020-09-15
CENT SOUTH UNIV
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Problems solved by technology

[0004] The invention provides a spiral riveting and locking welding device and method for explosive impact forming, the purpose of which is to solve the problems of self-piercing riveting that easily damages plates, high sensitivity, low dimensional accuracy of connection points, and easy occurrence of circumferential rotation

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  • Spiral rivet lock welding device and method for explosive shock forming
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  • Spiral rivet lock welding device and method for explosive shock forming

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Embodiment Construction

[0038] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0039] The invention provides a spiral riveting and locking welding device and method for explosive impact forming, aiming at the problems of easily damaged plates, high sensitivity, low dimensional accuracy of connection points and easy occurrence of circumferential rotation in existing self-piercing riveting.

[0040] Such as figure 1 As shown, the embodiment of the present invention provides a screw rivet lock welding device for explosive impact forming, including: an implementing mechanism 1, a rivet unit 2, a guide blank holder mechanism 3 and a controller 4; the rivet unit 2 is stored in a centralized In a rivet box 5, the implementation mechanism 1 is movable, and the implementation mechanism 1 is used to take the rivet unit 2 from the rivet box 5 a...

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Abstract

The invention provides a spiral rivet lock welding device for explosive shock forming. The spiral rivet lock welding device comprises an implementation mechanism, rivet units, a guide edge pressing mechanism and a controller. The rivet units are stored in a rivet box in a centralized manner. The implementation mechanism can move and is used for taking the rivet units from the rivet box, placing the rivet units on the guide edge pressing mechanism and triggering the rivet units. The guide edge pressing mechanism is pressed on an upper plate and a lower plate in advance and used for pressing theupper plate and the lower plate on a flat die. The controller is electrically connected with the implementation mechanism and the guide edge pressing mechanism respectively and used for controlling movement of the implementation mechanism and pressing of the guide edge pressing mechanism. The invention further provides a spiral rivet lock welding method for explosive shock forming. The spiral rivet lock welding device is reasonable in structural design and high in operation automation degree, plate connection can be efficiently completed, the connecting point precision is high, the mechanicalperformance is high, and the characteristic of resisting torque is achieved.

Description

technical field [0001] The invention relates to the technical field of rivet connection, in particular to a screw rivet lock welding device and method for explosive impact forming. Background technique [0002] With the introduction of mandatory regulations on frontal collision, side collision, and emission of automobiles, in order to reduce emissions while ensuring the structural strength of automobiles, advanced high-strength steels (such as DP steels, TRIP steels, and high-hole expansion steels) and aluminum Alloys have undoubtedly become the mainstream trend of automotive materials. The combination of these two materials can effectively reduce the weight of the vehicle body, reduce fuel consumption, and ensure and improve the safety and comfort of the vehicle. As a connection technology that can connect steel-aluminum composite panels, SPR self-piercing riveting has been favored by the majority of automobile manufacturers and has been fully applied in the design and man...

Claims

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Application Information

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IPC IPC(8): B21J15/18B21J15/32B21J15/02F16B19/05
CPCB21J15/185B21J15/32B21J15/025F16B19/05F16B19/06F16B5/04F16B5/08
Inventor 陈超翟瞻宇张惠阳易瑞祥秦登林
Owner CENT SOUTH UNIV
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