Production process applied to lantern-type riveting nut

A production process and technology for rivet nuts, applied in the direction of nuts, manufacturing tools, threaded fasteners, etc., can solve the problems of lower production yield, lower production efficiency, complex processing procedures, etc., to achieve high production efficiency and improve production efficiency , The effect of simplifying the processing procedure

Inactive Publication Date: 2019-08-30
广州市科镁隆五金有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The additional drum-shaped process will inevitably make the processing process more complicated, which will lead to lower production efficiency and high production costs. In addition, the secondary processing of the drum-shaped process will lead to the failure of some workpiece drum-shaped parts, which will cause the product to be scrapped and reduce the production yield rate.

Method used

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  • Production process applied to lantern-type riveting nut
  • Production process applied to lantern-type riveting nut
  • Production process applied to lantern-type riveting nut

Examples

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with the embodiment given with accompanying drawing.

[0042] A kind of lantern-shaped rivet nut production process, with reference to figure 1 , the lantern-shaped rivet nut includes a head 011, an expansion part 012 and a threaded part 013, the head 011 and the threaded part 013 are respectively connected to the two ends of the expansion part 012, and the head 011 protrudes outward The brim body is formed, the expansion part 012 is distributed with a plurality of cracking grooves 0121 in the circumferential direction, and the lantern-shaped rivet nut is extruded on multiple mold stations, refer to figure 2 , including the following steps:

[0043] S1. One-mold integer, refer to Figure 3, the raw material is extruded into a cylinder by the first-mold front punch 12 to generate a first-mold product 14, after the extrusion is completed, the first-mold rear punch 13 pushes the first-mold prod...

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Abstract

The invention relates to a production process applied to a lantern-type riveting nut and a production line thereof. The production process can realize industrial automatic production and is high in production efficiency, the production line and the production process discloses by the production process applied to the lantern-type riveting nut, by sequentially extruding and stretching to form an upper large hole and a lower large hole, a step is formed at the joint of the upper large hole and the lower large hole, so that the drum-type working procedure can be directly performed during the seven-mold machining, the subsequent extrusion machining is not needed, the machining procedure is simplified, the production efficiency is improved, the extrusion drum type is carried out from the insideof products, so that the expansion part can be smoothly expanded outwards, the production of good products is guaranteed, and the production cost is reduced.

Description

technical field [0001] The invention relates to the production of rivet nuts, in particular to a production process of lantern-shaped rivet nuts. Background technique [0002] Lantern-type rivet nuts include threaded parts, expansion parts and heads. The riveting principle of lantern-type rivet nuts is that when subjected to special tools or external forces, the expansion part expands and cracks evenly and the structural parts are tightly combined. The outer bulge looks like a lantern. It is a kind of nut with metal thread that can be quickly riveted on the structural parts of metal or non-metal plates or pipes with relatively low hardness. It has high strength. [0003] Existing lantern-shaped rivet nuts are generally produced by cold extrusion technology. In order to ensure that the expansion part of the lantern-shaped rivet nut can be cracked smoothly when in use, it is necessary to set a cracking groove on the expansion part in advance and squeeze the expansion part duri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/70B21J13/02
CPCB21J13/02B21K1/70
Inventor 张计划任永辉
Owner 广州市科镁隆五金有限公司
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