Pull rivet nut installation method capable of improving rotation-resistant capacity

A technology of blind rivet nuts and installation methods, which is applied in the field of blind rivet nuts, can solve the problems of easy rotation of round blind rivet nuts, difficulty in hexagonal holes, and easy failure of impact loads, etc., so as to improve the anti-rotation ability and processing method Variety, effect of improving seismic performance and impact resistance

Inactive Publication Date: 2020-01-03
辽宁忠旺铝合金精深加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, in order to solve the problems that the round blind rivet nut is easy to rotate, it is difficult to prepare the hexagonal hole when the hexagonal blind rivet nut is used, and the vibration and impact load are easy to fail when the pressed texture is used, the present invention provides an improved resistance Installation method of turning capacity blind rivet nut

Method used

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  • Pull rivet nut installation method capable of improving rotation-resistant capacity
  • Pull rivet nut installation method capable of improving rotation-resistant capacity
  • Pull rivet nut installation method capable of improving rotation-resistant capacity

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Embodiment

[0029] Such as figure 1 , 2 A kind of installation method that improves anti-rotation ability blind rivet nut shown in 4, comprises the following steps:

[0030] A. Open a circular installation hole 5 on the plate 2 to be installed with the blind rivet nut 1, and open a rounded gap 4 at the edge of the installation hole 5, and the radius of the rounded gap 4 is 1mm;

[0031] B. Insert the rivet gun into the inner cavity of the rivet nut 1, the rivet gun is threaded with the rivet nut 1, and the rivet gun drives the rivet nut 1 to penetrate into the installation hole 5;

[0032] C. The rivet gun pulls the rivet nut 1 to the side away from the plate 2, so that the rivet nut 1 deforms and forms a protrusion 3 on the end surface of the plate 2, and the protrusion 3 is close to the end surface of the plate and close to the position of the fillet gap 4 Expand outward, so that the contact surface between the rivet nut 1 and the plate 2 is no longer a complete cylindrical surface, a...

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Abstract

The invention belongs to the technical field of pull rivet nuts, and relates to a pull rivet nut installation method capable of improving the rotation-resistant capacity. By forming a rounded-corner opening on the basis of an existing plate installation hole, when a pull rivet nut is pulled outwards through a pull rivet gun, the portion, on the end face of a plate, of the pull rivet nut retracts and the position, close to the rounded-corner opening, of the pull rivet nut expands outwards, the contact face between the pull rivet nut and the plate is not a complete cylindrical face any more, theanti-seismic property and the anti-impact property of the pull rivet nut are improved, the rotation-resistant capacity of the pull rivet nut is also improved, and the rotation-resistant capacity of the round pull rivet nut can be improved by 30% or above. The problem that the round pull rivet nut is likely to rotate is solved; compared with a hexagonal pull rivet nut, the round pull rivet nut iseasy to machine, and cost is low; and meanwhile the process of pressing lines on the end, close to the head portion of the nut, of the pull rivet nut or the installation plate is also omitted.

Description

technical field [0001] The invention belongs to the technical field of blind rivet nuts, and relates to an installation method of blind rivet nuts for improving the anti-rotation ability. Background technique [0002] With the development of automobile lightweight technology, lightweight can be achieved by using aluminum alloy materials and more non-metallic parts on the body, thereby reducing the weight of the body to achieve better energy-saving and environmental protection effects. At present, most aluminum alloy car bodies adopt the structure of aluminum alloy profile skeleton combined with skin, and the connection methods of aluminum alloy profiles are mainly welding and riveting. Compared with welding, riveting has the characteristics of simple process, low cost of equipment and fixtures, and the body is not easily deformed during assembly. Therefore, the connection of aluminum alloy profiles through riveting is becoming more and more widely used. [0003] Blind rivet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J15/10B21J15/30B21J15/38
CPCB21J15/105B21J15/30B21J15/383
Inventor 康铭孙巍崔国亮王利杨宇冯嘉雨刘佳欣
Owner 辽宁忠旺铝合金精深加工有限公司
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