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Pivot and manufacturing method thereof

A manufacturing method and technology of pivots, applied in the field of pivots and its manufacture, can solve problems such as complex methods and waste of raw materials, and achieve the effect of simple raw materials and saving raw materials

Inactive Publication Date: 2012-03-14
KANGZHUN ELECTRONICS TECH KUNSHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method is complicated and wastes raw materials

Method used

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  • Pivot and manufacturing method thereof
  • Pivot and manufacturing method thereof
  • Pivot and manufacturing method thereof

Examples

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Embodiment Construction

[0017] see figure 1 The pivot of the present invention includes a substantially cylindrical shaft 10 , a threaded portion 20 disposed at one end of the shaft 10 and a crown 30 disposed at the other end of the shaft 10 . Two symmetrical planes 12 are formed on the surface of the shaft 10 . In this embodiment, the diameter of the threaded portion 20 is smaller than the diameter of the shaft 10 .

[0018] see figure 2 , the manufacture method of pivot of the present invention comprises the following steps:

[0019] The blank is extruded to form a semi-finished product, which includes a shaft 10 with a plane of symmetry 12, a crown 30 formed at one end of the shaft 10, and a cylindrical portion 21 formed at the other end of the shaft 10, wherein the cylindrical portion 21 The diameter is smaller than the diameter of the shaft 10 .

[0020] Threads are provided on the surface of the cylindrical portion to form a threaded portion 20 .

[0021] In this embodiment, the semi-fini...

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Abstract

The invention discloses a manufacturing method of a pivot. The manufacturing method comprises the following steps of: extruding to form a pivot rod with two symmetrical planes and forming a crown part at one end of the pivot rod; and arranging threads at the other end of the pivot rod to from a thread part. Compared with the prior art, the manufacturing method of the pivot comprises only two working procedures, is very simple and is beneficial to raw material saving.

Description

technical field [0001] The present invention relates to a pivot and its manufacturing method. Background technique [0002] Hinges are widely used in flip devices, and generally include a pivot. The existing pivot manufacturing methods generally have three manufacturing processes: cold forging the blank to form a semi-finished product including a cylindrical shaft; threading the end of the shaft to form a threaded portion; and milling the shaft to form a shaft. Two symmetrical planes. Said method is complicated and wastes raw materials. Contents of the invention [0003] In view of this, it is necessary to provide a simple and raw material-saving pivot manufacturing method and a pivot manufactured by the method. [0004] A manufacturing method of a pivot comprises the following steps: extruding a shaft with two symmetry planes and forming a crown at one end of the shaft; and threading the other end of the shaft to form a threaded portion. [0005] A method for manufact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 苏万俥
Owner KANGZHUN ELECTRONICS TECH KUNSHAN
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