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Manufacturing method for self drilling screw

A manufacturing method and technology for drilling tail screws, which are applied in the directions of nuts, threaded fasteners, connecting components, etc., can solve the problems of high equipment cost, low output, and high manufacturing cost of drilling tail screws 2, and achieve low manufacturing cost and equipment cost. low effect

Inactive Publication Date: 2013-01-02
冯 一鸣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the existing manufacturing method of the drill tail screw 2, in addition to using a screw forming machine to form the head of the blank 1 into the screw head 12, a drill tail forming machine is also used to shape the drill tail 13 of the drill tail screw 2 In this way, not only the manufacturing process of the drilling screw 2 is more complicated and the output is lower, but also the equipment cost is higher due to the use of two different machines, resulting in the high manufacturing cost of the drilling screw 2

Method used

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  • Manufacturing method for self drilling screw
  • Manufacturing method for self drilling screw
  • Manufacturing method for self drilling screw

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Embodiment Construction

[0030] A method for manufacturing a drill screw according to a preferred embodiment of the present invention will be described below with reference to related drawings, wherein the same components will be described with the same reference symbols.

[0031] Please refer to Figure 3A As shown, it is a flow chart of a method for manufacturing a drill tail screw in a preferred embodiment of the present invention. The manufacturing method of the drill tail screw of the present invention includes a screw head forming step S01 and a drill tail forming step S02.

[0032] Please refer to Figure 3B As shown, the screw head forming step S01 is: forming a head 31 from a blank 3 with a forming machine 4 , and forming a screw head 311 from the head 31 . Wherein, blank material 3 is metal. In addition, the forming machine 4 includes a first mold 41, a second mold 42 and a third mold 43, and the first mold 41, the second mold 42 and the third mold 43 make the blank 3 form the head 31 in ...

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Abstract

A manufacturing method for a self drilling screw comprises a screw head molding step and a drilling tail molding step. The screw head molding step uses a moulding machine to mould a head from a blank, and moulds a screw head from the head. The drilling tail molding step moulds a drilling by using the same moulding machine. The present invention can simplify the manufacturing method for the self drilling screw to raise output thereof, and can reduce manufacturing cost.

Description

technical field [0001] The invention relates to a manufacturing method, in particular to a manufacturing method of a drill tail screw. Background technique [0002] Drilling screws are a very common locking element, especially widely used in locking metal objects. [0003] Please refer to figure 1 and Figure 2A ~ Figure 2D As shown, among them, figure 1 It is a flow chart of a manufacturing method of an existing drilling screw, and Figure 2A ~ Figure 2D A schematic diagram of the manufacturing process of the drill tail screw, respectively. An existing method for manufacturing a drill screw includes a head-starting step P01 , a drill tail forming step P02 and a thread forming step P03 . [0004] Such as Figure 2A As shown, the heading step P01 preforms a head 11 from one end of the blank 1 by means of a screw forming machine (not shown in the figure). Additionally, if Figure 2B As shown, by means of the same screw forming machine, a screw head 12 is formed from th...

Claims

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Application Information

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IPC IPC(8): B21D53/24
Inventor 冯一鸣
Owner 冯 一鸣