Self-locking aluminum-plate connecting device and self-locking aluminum-plate connecting method

A connecting device and self-locking technology, which is applied in the field of self-locking aluminum plate connecting devices, can solve problems such as loss of efficacy and looseness, and achieve the effects of easy processing, simple structure and reasonable design

Pending Publication Date: 2017-11-03
山东文捷智能动力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical task of the present invention is to provide a self-locking aluminum plate connection device and method to solve the problem that in the existing aluminum plate connection, the screw can rotate in reverse, and may loosen under the action of alternating shear loads and lose its efficacy

Method used

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  • Self-locking aluminum-plate connecting device and self-locking aluminum-plate connecting method
  • Self-locking aluminum-plate connecting device and self-locking aluminum-plate connecting method
  • Self-locking aluminum-plate connecting device and self-locking aluminum-plate connecting method

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Experimental program
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Effect test

Embodiment 1

[0029] as attached figure 1 and 2 As shown, the self-locking aluminum plate connection device of the present invention includes a self-tapping screw 1 and two aluminum plates 2, the self-tapping screw 1 penetrates through the two aluminum plates 2 and the two aluminum plates 2 are fixedly connected; the self-tapping screw 1 includes a screw rod 3, The tip of the screw is extended to reduce the outer diameter and the tip of the screw is conical or conical; the middle screw is thread one 4, thread two 5 and thread three 6, and thread two 5 is located between thread one 4 and thread three 6 And the pitches of thread 1 4, thread 2 5 and thread 3 6 are all different to ensure that the self-tapping screw can self-lock and prevent the screw from rotating in reverse, loosening under the action of alternating shear loads and losing efficacy. The pitch of thread two 5 is greater than the pitch of thread one 4, and the pitch of thread one 4 is greater than the pitch of thread three 6. ...

Embodiment 2

[0031] as attached image 3 As shown, the difference between the present embodiment and the first embodiment is that the aluminum plate 2 is provided with a through hole 7 . The diameter of the through hole 7 on the aluminum plate 2 is smaller than the diameter of the self-tapping screw 1 . Other structures and connections are the same as in Embodiment 1.

Embodiment 3

[0033] The self-locking aluminum plate connection method of the present invention is based on any one of the self-locking aluminum plate connection devices in embodiment 1, and the method comprises the following steps:

[0034] (1) Stack the two aluminum plates 2 that need to be connected together;

[0035] (2) Use the self-tapping screw tool to quickly rotate the self-tapping screw 1 and push it into the aluminum plate 2, use the heat generated by the high-speed rotation to soften the matrix of the aluminum plate 2, and form an aluminum plate based on the shape of the self-tapping screw 1 on the aluminum plate 2 The connection hole and the dense connection structure formed between the aluminum plate 2 and the self-tapping screw 1 can ensure that the screws with different pitches will not loosen;

[0036] (3) Take away the self-tapping screw tool to complete the fastening and self-locking connection of a self-tapping screw 1 .

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Abstract

The invention discloses a self-locking aluminum-plate connecting device and a self-locking aluminum-plate connecting method and belongs to aluminum-plate connecting structures with an aim to mainly solves problems that screws in existing aluminum-plate connecting can rotate reversely resulting in possibilities of looseness and failure in efficacy under the action of alternating shear load. The technical scheme includes that the self-locking aluminum-plate connecting device comprises a self-tapping screw and two aluminum plates, and the self-tapping screw penetrates the aluminum plates to have the same fixedly connected; the self-tapping screw comprises a screw rod, the tip of the screw rod extends to reduce the outer diameter, and the tip is boss-shaped or conical; a first thread, a second thread and a third thread are sequentially arranged in the middle of the screw rod, and the second thread is located between the first thread and the third thread and the first thread, the second thread and the third thread are different in screw pitch. The invention further discloses the self-locking aluminum-plate connecting method.

Description

technical field [0001] The invention relates to an aluminum plate connection structure, in particular to a self-locking aluminum plate connection device and method. Background technique [0002] The current screw used for connecting aluminum plates has a uniform thread. During use, the screw is rotated clockwise while applying axial force to squeeze the screw into the aluminum plate. There is no need to drill holes, and the fast rotation softens the aluminum material, forming an inner thread in the aluminum material during the nailing process. However, in the existing aluminum plate connection, the screws can rotate in reverse, and may loosen under the action of alternating shear loads, losing efficacy. [0003] Patent No. CN204729435U patent literature discloses a self-tapping anti-slip screw, including a screw, the inside of the screw is hollow, the outside of the screw is covered with threads along the length of the screw, and one end of the screw has a cross groove. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B5/02F16B25/10F16B39/30
CPCF16B5/0208F16B25/0021F16B25/0073F16B25/10F16B39/30
Inventor 张洪延
Owner 山东文捷智能动力有限公司
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