A method for riveting medium and thick metal plates without protrusions on both sides

A technology for protrusions and metal plates, applied in the field of riveting of medium and thick metal plates, can solve the problems of cumbersome riveting steps, difficult production, complex rivet structure, etc., and achieve the effect of simple structure, reduced grinding process and high-quality riveting

Active Publication Date: 2021-02-19
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, there are also problems that the double countersunk head rivets are complex in structure, difficult to manufacture, and the riveting steps are cumbersome.

Method used

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  • A method for riveting medium and thick metal plates without protrusions on both sides
  • A method for riveting medium and thick metal plates without protrusions on both sides
  • A method for riveting medium and thick metal plates without protrusions on both sides

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, which are explanations of the present invention rather than limitations.

[0041] The method for the riveting of medium-thick metal plates with no protrusions on both sides of the present invention first pre-treats the upper sheet material 3 and the lower sheet material 4 to be riveted, such as figure 1 , at wall thickness t 1 A round hole with a diameter of D is processed on the upper plate 3 to be riveted, and several holes with a diameter of D are processed on the inner wall of the round hole. 1 , the height is h 1 The annular groove; at wall thickness t 2 A round hole with a diameter of D is processed on the lower plate 4 to be riveted, and several holes with a diameter of D are processed on the inner wall of the round hole. 2 , the height is h 2When the number of annular grooves in the upper circular hole of the upper plate 3 o...

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Abstract

The invention discloses a riveting method for medium-thick metal plates with no protrusions on both sides, and belongs to the technical field of material connection. A hole with an annular groove is prefabricated on the two medium-thick plates to be connected, and a connecting column with a simple shape is placed, and an external force is applied to both sides of the connecting column through the upper and lower punches to make it plastically deform and fill the ring. The groove method realizes fast and efficient riveting between medium and thick plates. According to the law of constant volume, the connecting column can be filled into the annular grooves of the upper and lower plates after plastic deformation, without obvious protruding high points, reducing the grinding process and improving production efficiency. The parts of the device used have a simple structure, are easy to process, and have good compatibility with conventional equipment. The pretreatment process of the riveted plates is simple, the production efficiency is high, and the cost is low; the surface of the connection part is smooth and has no protrusions, which is more beautiful; and, When the connecting column is plastically deformed, the tensile strength and shear strength of the riveted part increase, and the connection becomes more stable.

Description

technical field [0001] The invention belongs to the technical field of material connection, and in particular relates to a riveting method for double-sided medium-thick metal plates without protrusions. Background technique [0002] Medium-thick metal plates usually refer to metal plates with a thickness of 4mm to 20mm. Medium-thick metal plates are widely used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and other fields. [0003] At present, the connection of medium-thick metal plates is usually conventional methods such as bolt connection, pressure riveting, pull rivet and other rivet connections, but there are problems such as protrusions on the surface, which affect the appearance, and the bolts are easy to loosen, resulting in failure of the connection. At the same time, in some specific occasions, the surface of the riveting part is required to have no protrusions and the surface is smooth, making it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J15/14B21J15/42B21J15/38
CPCB21J15/14B21J15/42B21J15/38B21J15/02
Inventor 王朋义孙凯金加庚杨光刘延辉赵雪妮
Owner SHAANXI UNIV OF SCI & TECH
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