CN102847847A - Manufacturing method of self-drilling screw - Google Patents
Manufacturing method of self-drilling screw Download PDFInfo
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- CN102847847A CN102847847A CN2012100999562A CN201210099956A CN102847847A CN 102847847 A CN102847847 A CN 102847847A CN 2012100999562 A CN2012100999562 A CN 2012100999562A CN 201210099956 A CN201210099956 A CN 201210099956A CN 102847847 A CN102847847 A CN 102847847A
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- mould
- manufacture method
- self drilling
- drilling screws
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 53
- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 claims description 45
- 238000004080 punching Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 description 51
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000003490 calendering Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
A manufacturing method of a self-drilling screw comprises a screw head forming step and a self-drilling forming step. In the step of forming the screw head, a head is formed from a blank by a forming machine, and the head is formed into the screw head. In the drilling tail forming step, a drilling tail is formed on the same forming machine. The invention can simplify the manufacturing process of the self-drilling screw, so that the yield is higher, and meanwhile, the manufacturing cost can be reduced.
Description
Technical field
The present invention relates to a kind of manufacture method, particularly a kind of manufacture method of Self Drilling Screws.
Background technology
Self Drilling Screws is a kind of quite general latch members, and outstanding matter is widely used in the object of sealed metal material.
Please respectively with reference to shown in Fig. 1 and Fig. 2 A～Fig. 2 D, wherein, Fig. 1 is the manufacture method flow chart of existing a kind of Self Drilling Screws, and Fig. 2 A～Fig. 2 D is respectively the manufacture process schematic diagram of Self Drilling Screws.The manufacture method of existing a kind of Self Drilling Screws comprises the step P01 that takes the lead, and bores tail forming step P02 and a thread forming step P03.
Shown in Fig. 2 A, the step of taking the lead P01 relies on a screw forming machine (figure does not show) to make an end preformed of stock 1 go out a head 11.In addition, shown in Fig. 2 B, rely on same screw forming machine, and make head 11 mold a screw terminal 12 according to the shape of mould.
Moreover shown in Fig. 2 C, brill tail forming step P02 relies on a brill tail forming machine (figure shows) that the other end of stock 1 is molded a brill tail 13.
At last, shown in Fig. 2 D, thread forming step P03 relies on a thread rolling machine (figure does not show) that the shaft of stock 1 is molded a plurality of threads 14, to finish the manufacturing of Self Drilling Screws 2.
Yet, in the manufacture method of existing Self Drilling Screws 2, except using screw forming machine that the head of stock 1 is molded the screw terminal 12, also to use and bore brill tail 13 moulding that the tail forming machine makes Self Drilling Screws 2, so, the manufacture process that not only makes Self Drilling Screws 2 is complicated and make its output lower, simultaneously also because using two kinds of different machines to make its equipment cost higher, causes the manufacturing cost of Self Drilling Screws 2 higher.
Therefore, how to provide a kind of manufacture method of Self Drilling Screws, not only can simplify its manufacture process and make its output higher, also can reduce manufacturing cost simultaneously, become one of important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention also can reduce the manufacture method of the Self Drilling Screws of manufacturing cost simultaneously for providing a kind of manufacture process of not only can simplifying to make its output higher.
For reaching above-mentioned purpose, according to the manufacture method of a kind of Self Drilling Screws of the present invention, it comprises: a screw terminal forming step relies on the forming machine stock is molded a head, and makes this head mold a screw terminal; And one bore the tail forming step, molds one and bore tail on this forming machine.
In one embodiment of this invention, this screw terminal is shaped as hexagon, square or circular.
In one embodiment of this invention, this forming machine comprises one first mould, one second mould and one the 3rd mould, and this first mould, this second mould and the 3rd mold in turn make this stock mold this head, this screw terminal and this brill tail.
In one embodiment of this invention, the direction of the 3rd mould punching action is identical with the direction of this second mould punching action.
In one embodiment of this invention, the direction of the direction of the 3rd mould punching action and the action of this second mould punching is 90 degree.
In one embodiment of this invention, this forming machine more comprises a mold base, this mold base has fixedly die holder of a die shoe and, this first mould, this second mould and the 3rd mould have respectively one and move moulds and a fixed mould, this a plurality of moving moulds is arranged at respectively on this die shoe, and these a plurality of fixed moulds are arranged at respectively this fixedly on the die holder.
In one embodiment of this invention, bore in the step of tail moulding in this, utilize a transmission mechanism that this stock is rotated a predetermined angle.
In one embodiment of this invention, this transmission mechanism comprises one first gear and one second gear, and this first gear rotates and drives this second gear rotation, so that this stock rotates this angle.
In one embodiment of this invention, this angle is 90 degree.
In one embodiment of this invention, the manufacture method of Self Drilling Screws more comprises: a thread forming step relies on a thread rolling machine to mold a plurality of threads.
From the above, because comprising a screw terminal forming step and, the manufacture method according to Self Drilling Screws of the present invention bores the tail forming step.Wherein, the screw terminal forming step molds a head by means of on the forming machine with a stock, and makes head mold a screw terminal, is to mold one to bore tail on forming machine and bore the tail forming step.Thus, compare with existing, the present invention uses same forming machine to make screw terminal and the moulding of brill tail, therefore, not only can make the manufacture process of Self Drilling Screws simply make its output increased, simultaneously also because using a kind of machine to make its equipment cost lower, so that the manufacturing cost of Self Drilling Screws is lower.
Description of drawings
Fig. 1 is the flow chart of existing a kind of Self Drilling Screws manufacture method;
Fig. 2 A～Fig. 2 D is respectively the manufacture process schematic diagram of Self Drilling Screws;
Fig. 3 A is the flow chart of a kind of Self Drilling Screws manufacture method of preferred embodiment of the present invention;
Fig. 3 B is the manufacture process schematic diagram of the Self Drilling Screws manufacture method of application drawing 3A;
Fig. 4 and Fig. 5 are respectively the schematic diagram of transmission mechanism;
Fig. 6 is that the brill tail of Self Drilling Screws is made schematic diagram;
Fig. 7 is another flow chart of a kind of Self Drilling Screws manufacture method of preferred embodiment of the present invention; And
Fig. 8 is another schematic diagram of manufacture process of the Self Drilling Screws manufacture method of application drawing 3A.
1,3, the 5-stock description of reference numerals:; 11,31,51-head; 12,311,511-screw terminal; 13,32,52-bores tail; 14,33-thread; The 2-Self Drilling Screws; 4,4a-forming machine; 41～43,43a-mould; 411,421,431,431a-moves moulds; 412,422,432,432a-fixed mould; The 44-mold base; The 441-die shoe; 442-is die holder fixedly; 451,452-knock pin; The 46-transmission mechanism; 461,462-gear; The G-anchor clamps; P01～P03, S01～S03-step.
The specific embodiment
Hereinafter with reference to relevant drawings, the manufacture method according to a kind of Self Drilling Screws of preferred embodiment of the present invention is described, wherein identical element will be illustrated with identical reference marks.
Please refer to shown in Fig. 3 A, it is the flow chart of a kind of Self Drilling Screws manufacture method of preferred embodiment of the present invention.The manufacture method of Self Drilling Screws of the present invention comprises that a screw terminal forming step S01 and bores tail forming step S02.
Please refer to shown in Fig. 3 B, screw terminal forming step S01 is: rely on the forming machine 4 stock 3 is molded a head 31, and make head 31 mold a screw terminal 311.Wherein, stock 3 is metal.In addition, forming machine 4 comprises one first mould 41, one second mould 42 and one the 3rd mould 43, and the first mould 41, the second mould 42 and the 3rd mould 43 sequentially make stock 3 mold head 31, screw terminal 311 and bores tail 32.
Moreover forming machine 4 more can comprise a mold base 44, and mold base 44 has fixedly die holder 442 of a die shoe 441 and.In addition, the first mould 41, the second mould 42 and the 3rd mould 43 have respectively 411,421,431 and one fixed mould 412,422,432 that moves moulds, and moving moulds 411,421,431 is arranged at respectively on the die shoe 441, and fixed mould 412,422,432 is arranged at respectively fixedly on the die holder 442.Can be found out that by title moving moulds 411,421,431 is mould movably, and fixed mould 412,422, the 432nd is fixed.
In the present embodiment, forming machine 4 relies on bent axle, slide rail and anchor clamps (Fig. 3 B does not show) that stock 3 is moved to the fixed mould 412 of the first mould 41, and relies on another bent axle and another anchor clamps (Fig. 3 B does not show) to move to the second mould 42 and the 3rd mould 43.In addition, rely on the 411 down punching presses that move moulds of the first mould 41, plasticly go out head 31, and rely on the 421 down punching presses that move moulds of the second mould 42, plasticly go out screw terminal 311.In addition, after head 31 and screw terminal 311 punching presses are finished, can rely on respectively a knock pin 451,452 stocks 3 with moulding to be ejected respectively by fixed mould 412,422, to move to respectively next processing procedure.Wherein, the shape of screw terminal 311 for example can be hexagon, square or circular, is not limited in this.
Special one carry be, when stock 3 was moved toward the second mould 42 by the first mould 41, another stock was moved toward the 3rd mould 43 by the second mould 42 simultaneously, and another stock is moved in the first mould 41 by the outside, therefore, forming machine 4 can be made Self Drilling Screws in each mould continuously and simultaneously.Again special one carry be, existing screw forming machine relies on bent axle to take two turns stock to be moved to next processing procedure, as long as and forming machine of the present invention 4 employed bent axles turn around and stock 3 can be moved to next processing procedure, therefore, the comparable existing height of its output.
In addition, boring tail forming step S02 is: punch forming goes out a brill tail 32 on forming machine 4.
In the present embodiment, stock 3 moves to the first mould 41, and when moving to the second mould 42 by the second mould 41, stock 3 is kept same direction, for example the vertical direction of Fig. 3 B.In other words, shown in Fig. 3 B, the stock 3 of screw terminal forming step S01 is just mobile, and goes out head 31 and screw terminal 311 in the first mould 41 and the 42 interior respectively punch formings of the second mould.But, in the step S02 that bores the tail moulding, utilize a transmission mechanism 46 that stock 3 is rotated an angle.
Please be simultaneously with reference to Fig. 3 B and shown in Figure 4, in the present embodiment, transmission mechanism 46 can comprise one first gear 461 and one second gear 462.Wherein, the first gear 461 and the second gear 462 are mutual interlocks, and the first gear 461 can drive the second gear 462 when rotating and rotate, so that stock 3 rotates an angle.In this, rely on the stock 3 of an anchor clamps G clamping screw terminal 311, and rotate by the first gear 461, but and then interlock the second gear 462, make stock 3 rotate counterclockwise an angle.In this, as shown in Figure 5, the angle of rotation is 90 degree.Wherein, 90 degree certainly, can design other transmission mechanism to rotate different angles just for example.
In addition, please refer to shown in Figure 6, after transmission mechanism 46 rotates 90 degree with stock 3, can rely on move moulds 431 and fixed mould 432 other end punch forming of stock 3 is gone out to bore tail 32.Special one what carry is that Fig. 6 is signal just, in fact, shown in Fig. 3 B, moves moulds 431 by top punching press fixed mould 432 down.Certainly, in other design, the direction of the 431 punching press fixed moulds 432 that move moulds is level or other direction also.
Explanation is again, and the angle that the present invention does not limit transmission mechanism 46 rotation stocks 3 is 90 degree, in other embodiments, also can be other angle, for example 60 degree or 180 are spent, even 360 degree, perhaps be mobile stock 3 and do not rotate stock 3, or mobile and rotate stock 3 simultaneously.In addition, the present invention does not limit transmission mechanism yet and is only gear transmission mode, and it also can be belt transmission or the modes such as cam drive or link transmission, is not limited in this.As long as it is removable and or rotate an angle to move to the stock 3 of the 3rd mould 43 by the second mould 42.In the present embodiment, the direction of the 3rd mould 43 punching presses action is identical with the direction of the second mould 42 punching presses action.But, also can rely on different designs to make the direction of the 3rd mould 43 punching presses action and the direction of the second mould 42 punching presses action be for example 90 degree.
In addition, please refer to shown in Figure 7, the manufacture method of Self Drilling Screws of the present invention more can comprise a thread forming step S03, and thread forming step S03 is: rely on a thread rolling machine (figure does not show) to go out a plurality of threads 33 in the shaft calendering forming of stock 3, to finish the manufacturing of Self Drilling Screws.
Then, please refer to shown in Figure 8ly, it is another schematic diagram of manufacture process of the Self Drilling Screws manufacture method of application drawing 3A.
Different being that the embodiment of Fig. 8 and the embodiment of Fig. 3 B are main, when the stock 5 of Fig. 8 moves to the 3rd mould 43a by the second mould 42 of forming machine 4a, transmission mechanism (Fig. 8 does not show) only moves to the 3rd mould 43a with stock 5 but does not rotate, and the setting party of move moulds 431a and the fixed mould 432a of the 3rd mould 43a is to different with Fig. 3 B.Therefore, the direction of the 3rd mould 43a punching press of Fig. 8 action is horizontal direction, and different from the direction of the second mould 42 punching presses action, and both differ 90 degree.
In addition, other technical characterictic of present embodiment can with reference to a upper embodiment, repeat no more in this.
In sum, because comprising a screw terminal forming step and, the manufacture method according to Self Drilling Screws of the present invention bores the tail forming step.Wherein, the screw terminal forming step molds a head by means of on the forming machine with a stock, and makes head mold a screw terminal, molds a brill tail and bore the tail forming step on forming machine.Thus, compare with existing, the present invention uses same forming machine to make screw terminal and the moulding of brill tail, therefore, not only can make the manufacture process of Self Drilling Screws simply make its output increased, simultaneously also because using a kind of machine to make its equipment cost lower, so that the manufacturing cost of Self Drilling Screws is lower.
The above only is illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in the accompanying claim.
Claims (10)
1. the manufacture method of a Self Drilling Screws is characterized in that, comprising:
One screw terminal forming step relies on the forming machine stock is molded a head, and makes this head mold a screw terminal; And
One bores the tail forming step, molds one and bore tail on this forming machine.
2. the manufacture method of Self Drilling Screws as claimed in claim 1 is characterized in that, this screw terminal be shaped as hexagon, square or circular.
3. the manufacture method of Self Drilling Screws as claimed in claim 1, it is characterized in that, this forming machine comprises one first mould, one second mould and one the 3rd mould, and this first mould, this second mould and the 3rd mold in turn make this stock mold this head, this screw terminal and this brill tail.
4. the manufacture method of Self Drilling Screws as claimed in claim 3 is characterized in that, the direction of the 3rd mould punching action is identical with the direction of this second mould punching action.
5. the manufacture method of Self Drilling Screws as claimed in claim 3 is characterized in that, the direction of the direction of the 3rd mould punching action and the action of this second mould punching is 90 degree.
6. the manufacture method of Self Drilling Screws as claimed in claim 3, it is characterized in that, this forming machine more comprises a mold base, this mold base has fixedly die holder of a die shoe and, this first mould, this second mould and the 3rd mould have respectively one and move moulds and a fixed mould, this a plurality of moving moulds is arranged at respectively on this die shoe, and these a plurality of fixed moulds are arranged at respectively this fixedly on the die holder.
7. the manufacture method of Self Drilling Screws as claimed in claim 1 is characterized in that, bores in the step of tail moulding in this, utilizes a transmission mechanism that this stock is rotated a predetermined angle.
8. the manufacture method of Self Drilling Screws as claimed in claim 7 is characterized in that, this transmission mechanism comprises one first gear and one second gear, and this first gear rotates and drives this second gear rotation, so that this stock rotates this angle.
9. the manufacture method of Self Drilling Screws as claimed in claim 8 is characterized in that, this angle is 90 degree.
10. the manufacture method of Self Drilling Screws as claimed in claim 1 is characterized in that, more comprises:
One thread forming step relies on a thread rolling machine to mold a plurality of threads.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100122996 | 2011-06-30 | ||
| TW100122996A TW201300656A (en) | 2011-06-30 | 2011-06-30 | Manufacturing method of self drilling screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102847847A true CN102847847A (en) | 2013-01-02 |
Family
ID=47395052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100999562A Pending CN102847847A (en) | 2011-06-30 | 2012-04-06 | Manufacturing method of self-drilling screw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102847847A (en) |
| TW (1) | TW201300656A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI607159B (en) * | 2016-07-11 | 2017-12-01 | To Ha Loi | Drilling screw forming method and its tail screw |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287210B1 (en) * | 2000-04-07 | 2001-09-11 | Textron Inc. | Process of forming a twisted, spirally grooved member and the member formed thereby |
| TW492896B (en) * | 2001-03-02 | 2002-07-01 | Wen-Lung Cheng | Cold forging pressing forming method for flat-grooved headless fastening screw |
| EP1450054A1 (en) * | 2003-02-20 | 2004-08-25 | Adolf Würth GmbH & Co. KG | Drilling screw |
| TWM267227U (en) * | 2004-11-09 | 2005-06-11 | Jin-Ju Li | Material reversing machine |
| TWI238088B (en) * | 2003-10-16 | 2005-08-21 | Rung-Ju Jau | Method of making a self-tapping screw with extra long drilling tip and product made by same |
| CN2773380Y (en) * | 2005-02-24 | 2006-04-19 | 李菱花 | Drill end screw |
| CN2803569Y (en) * | 2005-06-27 | 2006-08-09 | 陈志明 | Compounded assembly joined structure of drill tail forming die |
| TWI302857B (en) * | 2006-08-31 | 2008-11-11 | guo-sheng Liu | |
| CN101408216A (en) * | 2007-10-12 | 2009-04-15 | 三友璟工业有限公司 | Tail-drilling screw and manufacture method thereof |
-
2011
- 2011-06-30 TW TW100122996A patent/TW201300656A/en unknown
-
2012
- 2012-04-06 CN CN2012100999562A patent/CN102847847A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287210B1 (en) * | 2000-04-07 | 2001-09-11 | Textron Inc. | Process of forming a twisted, spirally grooved member and the member formed thereby |
| TW492896B (en) * | 2001-03-02 | 2002-07-01 | Wen-Lung Cheng | Cold forging pressing forming method for flat-grooved headless fastening screw |
| EP1450054A1 (en) * | 2003-02-20 | 2004-08-25 | Adolf Würth GmbH & Co. KG | Drilling screw |
| TWI238088B (en) * | 2003-10-16 | 2005-08-21 | Rung-Ju Jau | Method of making a self-tapping screw with extra long drilling tip and product made by same |
| TWM267227U (en) * | 2004-11-09 | 2005-06-11 | Jin-Ju Li | Material reversing machine |
| CN2773380Y (en) * | 2005-02-24 | 2006-04-19 | 李菱花 | Drill end screw |
| CN2803569Y (en) * | 2005-06-27 | 2006-08-09 | 陈志明 | Compounded assembly joined structure of drill tail forming die |
| TWI302857B (en) * | 2006-08-31 | 2008-11-11 | guo-sheng Liu | |
| CN101408216A (en) * | 2007-10-12 | 2009-04-15 | 三友璟工业有限公司 | Tail-drilling screw and manufacture method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201300656A (en) | 2013-01-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130102 |