WO2010021443A1 - Procédé de fabrication d’une vis autoperceuse - Google Patents

Procédé de fabrication d’une vis autoperceuse Download PDF

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Publication number
WO2010021443A1
WO2010021443A1 PCT/KR2009/001023 KR2009001023W WO2010021443A1 WO 2010021443 A1 WO2010021443 A1 WO 2010021443A1 KR 2009001023 W KR2009001023 W KR 2009001023W WO 2010021443 A1 WO2010021443 A1 WO 2010021443A1
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WO
WIPO (PCT)
Prior art keywords
drill blade
rod
forming
groove
spiral
Prior art date
Application number
PCT/KR2009/001023
Other languages
English (en)
Korean (ko)
Inventor
박순용
Original Assignee
새한전자
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 새한전자 filed Critical 새한전자
Publication of WO2010021443A1 publication Critical patent/WO2010021443A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/56—Making machine elements screw-threaded elements

Definitions

  • the present invention relates to a method for manufacturing a direct screw, and more particularly, in the manufacture of a direct screw, by forming a spiral on the outer surface of the body and allowing a drill blade to be formed at the end of the body, the production of the direct screw is simple and quick. It relates to a direct screw manufacturing method to be made.
  • a screw is usually used as a means for fixing an object or part to another object or device.
  • the screw has a spiral formed on the outer surface of the body, so that the helix penetrates the body of the object to be fixed, the object or part is fixed, the ordinary screw is to fix the object or part to another object or device.
  • the end of the body directly tightens the fixing object, tightening is performed, which requires considerable force in the tightening process and damage to the joining part. It is increasing.
  • the direct screw is provided with a drill blade at the tip of the body, so that the spiral of the body penetrates the body of the fixed object while the drill bit drills the body of the fixed object. In addition, it is possible to prevent damage to the screw coupling portion.
  • the conventional method for manufacturing a direct screw the head portion 110 after forming the head portion 110 having a tool insertion groove 112 in one end of the rod-shaped wire 110 as shown in FIG.
  • the other end of the bar-shaped wire (100) is inserted into the mold 50, the drill blade forming groove 51 is formed to face the end of the rod-shaped wire 100 inserted into the drill blade forming groove 51 of the mold 50
  • the rod-shaped wire (100) having a drill blade 114 formed by the above process is pushed and rolled between the rolling die and the rod-shaped wire
  • the spiral 113 was formed at 100.
  • the present invention has been made in view of the above circumstances, in the manufacture of a direct screw, by forming a spiral on the outer surface of the body and at the same time the drill blades can be formed on the body end, the production of the direct screw is made easily and quickly
  • the purpose is to provide a direct screw manufacturing method that allows.
  • Head portion that forms a tapered behind the bar wire by hitting the bar wire behind the first punch having a circular cross section in a state where the rod wire is inserted into the forming groove of the main die having a forming groove formed at the rear.
  • the head portion of the rod-shaped wire having the tool inserting groove formed in the head portion is pushed and rolled between the rolling dies in the form of a plate provided with a drill blade forming portion having a drill blade forming groove to spiral the rod-shaped wire. And a spiral and a drill blade forming step of simultaneously forming a drill blade.
  • a rod-shaped wire having a head portion having a tool inserting groove formed in a spiral and a drill blade forming step is pushed and rolled between a rolling die of a plate shape provided with a drill blade forming groove to a rod-type wire. It is to form a spiral and a drill blade at the same time, it is possible to shorten the time required to manufacture the direct screw to increase the productivity of the product, and to reduce the cost burden because it is unnecessary to manufacture the mold for forming the drill blade It will be possible.
  • 1 is a flow chart showing the process of the direct screw manufacturing method according to the present invention.
  • Figure 2 is a schematic diagram for explaining the head portion forming step in the direct screw manufacturing method according to the present invention
  • Figure 3 is a schematic diagram for explaining the spiral and the drill blade forming step in the process of the direct screw manufacturing method according to the present invention
  • Figure 4 is a perspective view showing the shape of the rolling die used in the spiral and drill blade forming step in the method for manufacturing a direct screw according to the present invention
  • Figure 5 is a schematic diagram for explaining the process of forming a drill blade on the front end of the conventional direct screw manufacturing method
  • FIG. 1 is a flow chart showing the process of the direct screw manufacturing method according to the present invention
  • Figure 2 is a schematic diagram for explaining the head portion forming step in the direct screw manufacturing method according to the present invention
  • Figure 3 is a direct screw according to the present invention
  • Figure 4 is a schematic view for explaining the spiral and drill blade forming step in the process of the manufacturing method
  • Figure 4 is a perspective view showing the shape of the rolling die used in the spiral and drill blade forming step in the direct screw manufacturing method according to the present invention.
  • the method for manufacturing a direct screw according to the present invention includes a head part forming step S1 and a spiral and a drill blade forming step S2.
  • a rod-shaped wire 100 is introduced into a forming groove of a main die 10 having a forming groove 11 having a taper 11 a formed at a rear side thereof.
  • the head portion 110 forming the taper 111 is formed on the rear of the bar-shaped wire 100, and then the driver bit shape.
  • the second punch 30 having the protruding portion 31 is formed to hit the back of the head portion 110 to form the tool insertion groove 112 in the head portion 110 of the rod-shaped wire 100.
  • the rod-shaped wire 100 introduced into the forming grooves 11 of the main die 10 in the head forming step S1 is preferably of a certain length made of steel, and molding of the main die 10.
  • the first and second punches 20 and 30 hitting the rod-shaped wires in the groove 11 may be capable of moving forward, backward, ascending and descending, and may be formed in the forming groove 11 of the main die 10.
  • the second punch 30 hitting the rear of the head 110 of the inserted bar wire 100 may be in the form of a tip of another tool such as a hexagon wrench in addition to the shape of the protrusion 31 is a straight or cross-shaped driver bit. Do.
  • the method for discharging the rod-shaped wire 100 is formed outside the forming groove of the main die 10 may be made by any conventional method, so the detailed description is omitted.
  • the spiral and drill blade forming step (S2) is the head portion of the rod-shaped wire 100, the tool insertion groove 112 is formed in the head portion 110 through the head portion forming step (S1) as shown in FIG.
  • the tool insertion groove 112 is inserted into the head portion 110 by pushing and rolling the lower portion between the rolling die 40 having a plate shape provided with the drill blade forming portion 41 having the drill blade forming groove 41a.
  • the spiral wire 113 and the drill blade 114 are formed at the same time on the formed rod-shaped wire 100.
  • the drill blade forming portion 41 of the rolling die 40 is integrally formed under the spiral portion 42 having the spiral groove 42a as shown in FIG. 4. It is preferred that it is provided, but made in a form gradually protruding toward the bottom.
  • the tip of the rod-shaped wire 100 may be pointed downward toward the bottom.
  • the drill blade forming groove 41a of the drill blade forming portion 41 varies the interval and angle depending on the number and angle of formation of the target drill blade 114, the depth of the spiral groove 42a It is preferable to make it lower than depth, and it is preferable that the angle of the drill blade forming groove 41a inclines 25-45 degrees clockwise or counterclockwise from a horizontal state.
  • the width of the drill blade 114 formed at the tip of the rod-shaped wire 100 is formed on the outer surface of the rod-shaped wire 100. Since the spiral 114 becomes narrower than the width of the spiral 114 to be fastened to the fastening object, the spiral 114 can be bitten by the fastening object, and the angle of the drill blade forming groove 41a is clockwise or counterclockwise. As the drill blade 114 formed in the rod-shaped wire 100 has the same angle as the drill blade forming groove 41a by making an inclination of 25-45 °, it is easily drilled without a load in the drilling process when fastening a direct screw. This can be done.
  • the result of the head forming step (S1) that is, a method of mounting the rod-shaped wire 100, the tool insertion groove 112 is formed in the head portion 110 to the rolling die 40, and the rolling die 40 )
  • the method of discharging the result of the molding to be located inside, that is, the rod-shaped wire 100 having the spiral 113 and the drill blade 114 to the outside of the rolling die 40 may be made by any conventional method. The description is omitted.
  • the drill blade 114 can be formed at the tip of the rod-shaped wire 100 at the same time as the spiral 113 is formed, so that the production of the direct connection screw can be made more easily and quickly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

La présente invention concerne un procédé de fabrication d’une vis autoperceuse selon lequel une spire est formée sur la surface extérieure du corps principal de la vis et un tranchant de foret est formé à l’extrémité avant du corps principal de la vis en même temps pour permettre la fabrication de vis autoperceuses de manière pratique et rapide. Le procédé de fabrication d’une vis autoperceuse selon la présente invention comprend une étape de formation de la tête (S1) qui comprend l’amorçage de la partie arrière d’un fil métallique en forme d’une tige (100), l’utilisation d’un premier poinçon (20) présentant une section transversale circulaire, dans un état où le fil métallique en forme de tige (100) est introduit dans une rainure de moulage (11) formée au niveau d’une filière principale (10), et qui présente une partie conique (111) au niveau de la partie arrière du fil métallique en forme de tige (100), et un nouvel amorçage de la partie arrière de la tête (110) à l’aide d’un second poinçon (30) présentant une saillie (31) sous la forme d’une mèche d’entraînement pour former une rainure d’insertion d'outil (112) au niveau de la tête (110) du fil métallique en forme de tige (100); et une étape de formation d’une spire et d'un tranchant de foret (S2) qui comprend la poussée et le laminage de la partie sous la tête (110) du fil métallique en forme de tige (100) dont la tête (110) comprend la rainure d’insertion d’outil (112), dans l’espace entre des filières de laminage en forme de plaque (40) comprenant des parties de formation de tranchant de foret (41) avec des rainures de formation de tranchant de foret (41a), pour former une spire (113) et un tranchant de foret (114) simultanément sur le fil métallique en forme de tige (100).
PCT/KR2009/001023 2008-08-22 2009-03-03 Procédé de fabrication d’une vis autoperceuse WO2010021443A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0082270 2008-08-22
KR20080082270 2008-08-22

Publications (1)

Publication Number Publication Date
WO2010021443A1 true WO2010021443A1 (fr) 2010-02-25

Family

ID=41707307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/001023 WO2010021443A1 (fr) 2008-08-22 2009-03-03 Procédé de fabrication d’une vis autoperceuse

Country Status (1)

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WO (1) WO2010021443A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05192736A (ja) * 1991-06-28 1993-08-03 Kawasaki Steel Corp 六角穴付きボルトの製造方法
KR970005445B1 (ko) * 1991-03-29 1997-04-16 닛뽄 고오깐 가부시끼가이샤 용접 가능한 흑색강판
KR20040062818A (ko) * 2003-01-03 2004-07-09 주식회사 대우화스너 브레이크 라이닝용 볼트의 제조방법
JP2005103637A (ja) * 2003-09-26 2005-04-21 Sakamura Mach Co Ltd 座金を含む複数部材の圧造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970005445B1 (ko) * 1991-03-29 1997-04-16 닛뽄 고오깐 가부시끼가이샤 용접 가능한 흑색강판
JPH05192736A (ja) * 1991-06-28 1993-08-03 Kawasaki Steel Corp 六角穴付きボルトの製造方法
KR20040062818A (ko) * 2003-01-03 2004-07-09 주식회사 대우화스너 브레이크 라이닝용 볼트의 제조방법
JP2005103637A (ja) * 2003-09-26 2005-04-21 Sakamura Mach Co Ltd 座金を含む複数部材の圧造方法

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