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Rivet pulling mechanism with good concentricity

A technology of concentricity and riveting, applied in the direction of connecting components, mechanical equipment, threaded fasteners, etc., can solve the problems of eccentricity, large gap, uneven force, etc., and achieve the effect of good concentricity

Pending Publication Date: 2022-07-01
PEM CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the connecting piece docked with the rivet nut and the above-mentioned step light hole part adopt a clearance fit method, and the gap between the two is relatively large, so that the deformation of this position is free deformation around the entire circumference, and there is a problem Uneven force, resulting in eccentricity between the rivet nut and the connecting piece after riveting

Method used

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  • Rivet pulling mechanism with good concentricity
  • Rivet pulling mechanism with good concentricity
  • Rivet pulling mechanism with good concentricity

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for the purpose of description and to distinguish similar objects, and there is no sequence between the two, nor can they be construed as indicating or imply relative importance. Also, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0028] combine Figu...

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Abstract

The riveting mechanism with the good concentricity comprises a first connecting unit and a second connecting unit, and the first connecting unit comprises an internal thread part and a mounting groove part; the second connecting unit comprises an external thread part and a positioning part matched with the mounting groove part; a gap between the outer side wall of the positioning part of the second connecting unit and the mounting groove part of the first connecting unit is within a preset gap range; and the concentricity variation of the first connecting unit before and after the first connecting unit is riveted with the second connecting unit is less than phi 0.2 mm. The riveting device at least has the following advantages that under the action of riveting force from left to right, the positioning part can continuously position the bulged and deformed position in the bulged and deformed process of the structure corresponding to the mounting groove part, so that the first connecting unit completes outwards-bulged full-circumferential directional deformation, and the riveting effect is improved. And the first connecting unit is ensured to have better concentricity relative to the second connecting unit.

Description

technical field [0001] The invention relates to the technical field of riveting, in particular to a riveting mechanism with good concentricity. Background technique [0002] The descriptions in this section merely provide background information related to the present disclosure and do not constitute prior art. [0003] The rivet nut in the prior art generally includes a threaded portion and a stepped smooth hole portion, and the principle of riveting is to realize the bulging deformation of the above-mentioned stepped smooth hole portion through the pulling force provided by the riveting gun. In the prior art, a clearance fit is used between the connecting piece that is butted with the rivet nut and the above-mentioned stepped light hole portion, and the gap between the two is relatively large, so that the position is deformed into a free deformation of the whole circumference, and there is a problem. Uneven force, resulting in eccentricity after riveting between the rivet ...

Claims

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Application Information

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IPC IPC(8): F16B37/06
CPCF16B37/062
Inventor 黄志强汪红兵楚芸
Owner PEM CHINA
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