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Extrusion forming method and forming device for self-fastening I-shaped rivet

An extrusion molding and I-shape technology, which is applied to rivets, metal processing equipment, connecting components, etc., can solve the problems of wasting raw materials, low efficiency, and affecting the strength of molded parts, so as to reduce material waste, reduce energy consumption, and save processing cost effect

Active Publication Date: 2020-12-01
PEM CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production method of machining is not only inefficient and wastes raw materials, but also the fiber structure of the formed parts produced by machining is cut off, which affects the strength of the formed parts

Method used

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  • Extrusion forming method and forming device for self-fastening I-shaped rivet
  • Extrusion forming method and forming device for self-fastening I-shaped rivet
  • Extrusion forming method and forming device for self-fastening I-shaped rivet

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The first object of the present invention is to provide a self-fastening I-shaped rivet extrusion molding method, thereby replacing the production method of machining, and quickly manufacture the formed parts of the self-fastening I-shaped rivet.

[0040] Specifically, the method may include the following steps:

[0041] First, the first end of the wire blank 10 is upset to obtain the head blank 20 . In this step, the head parison 20 can be upset and e...

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PUM

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Abstract

The invention discloses an extrusion forming method and a forming device for a self-fastening I-shaped rivet. The forming method comprises the following steps: upsetting and extruding a first end of awire rod blank to obtain a discharger part and a handle diameter part parison, upsetting and extruding the handle diameter part parison to obtain a handle diameter part and an accommodating groove part, and upsetting and extruding a second end of the wire rod blank to obtain a clamping groove part, a clamping groove handle part and the like. The forming part of the self-fastening I-shaped rivet is obtained through one-time machining in an extrusion forming mode, no waste is generated in the machining process, and compared with a traditional machining production mode, the utilization rate of raw materials is greatly increased. Meanwhile, the metal streamline of the formed part obtained through the method is complete, compared with a formed part produced through machining, the strength canbe greatly improved, and the hydrogen embrittlement risk in the subsequent surface treatment process is avoided.

Description

technical field [0001] The invention relates to the field of extrusion molding, in particular to an extrusion molding method and a molding device for a self-fastening I-shaped rivet. Background technique [0002] The self-fastening H-shaped rivet is a panel joint fastener used for quick disassembly and assembly of panels. Its structure is as follows: figure 1 As shown, it includes a discharger part 1, a handle diameter part 2, a groove part 3 and a groove handle part 4, wherein, there is a recessed container part 5 between the discharger part 1 and the handle diameter part 2 , the slot part 3 is also jointly surrounded by the discharger part 1, the slot handle part 4 and the rod part 6 for connecting the two. [0003] Such as figure 2 , image 3 As shown, when assembling the panels, first fasten the self-fastening I-shaped rivets into the holes opened on the first panel 7 and apply pressure, so that the discharger part 1 squeezes the panel material, thereby squeezing the...

Claims

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Application Information

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IPC IPC(8): B21K1/58B21J5/00B21J5/02
CPCB21K1/58B21J5/002B21J5/02B21J5/08B21C23/18Y02P70/10B21K1/52B21K1/54B21C23/20F16B37/068B21K25/00B21K1/60
Inventor 刘海峰
Owner PEM CHINA