CN106678152A - Improved structure and manufacturing method of self-tapping screw - Google Patents
Improved structure and manufacturing method of self-tapping screw Download PDFInfo
- Publication number
- CN106678152A CN106678152A CN201610597638.7A CN201610597638A CN106678152A CN 106678152 A CN106678152 A CN 106678152A CN 201610597638 A CN201610597638 A CN 201610597638A CN 106678152 A CN106678152 A CN 106678152A
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- China
- Prior art keywords
- dust lead
- blade
- lead portion
- extends
- rib
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 230000001133 acceleration Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 61
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 30
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 12
- 210000001215 vagina Anatomy 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 6
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract 4
- 238000007599 discharging Methods 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
- 101100234547 Caenorhabditis elegans rod-1 gene Proteins 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
- F16B25/0021—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being metal, e.g. sheet-metal or aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
- F16B25/0084—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by geometric details of the tip
Abstract
The invention relates to a self-tapping screw, which is a screw for drilling and tapping workpieces such as wood plates or metal plates and the like, and is provided with a rod body, wherein one end of the rod body extends to form a threaded part; one end of the thread part extends to form a chip guide part, the chip guide part is formed by extending and connecting the tail end of the thread part in a spiral manner, and a groove part which extends along with the chip guide part is formed at the bottom of the spiral rib; the tail end of the chip guide part extends to form a drilling and tapping part, and the tail end of the drilling and tapping part extends to form a pair of blade parts; the method is characterized in that: the cutting edge part is formed by a pair of opposite slope edge edges in a corresponding mode, wherein two ends of the cutting edge part respectively extend downwards to form a pair of cutting edges, the pair of cutting edges correspond to each other at different inclination angles, and the inclination angle of the cutting edges is smaller than that of the ribs of the chip guide part; and the second part directly extends and is connected with the tail end of the groove part of the chip guide part. The drilling and tapping part structure has the functions of assisting acceleration and smoothly discharging chips, so that the screw lock has the function of cutting and tapping when being screwed into a workpiece.
Description
Technical field
The present invention is to attack plank or metal for boring with regard to a kind of self-tapping screw improved structure and its preparation method, particularly one kind
The screw of plate, is that the quick drill for increasing self-tapping screw attacks function, increases the structure of chip removal and reinforcing screw rod body so as to attack in brill
Resistance is reduced during work package, speed is attacked with brill is increased, and is strengthened the service life of self-tapping screw.
Background technology
Refer to Taiwan Patent Announcement Number：I352160 " self-tapping screw structure ", a kind of self-tapping screw improved structure, bag
Include：One screw terminal, its one end are provided with screw rod, and the screw front end extends a drill bit for having pointed cone portion, and the drill bit diagonally opposing corner is provided with right
Claim longitudinal cutter face, the longitudinal cutter face position is formed with oblique cone tangent plane in pointed cone portion, and is set as in longitudinal cutter face external opposite ends
Inside contract the conical surface；Most grooves are provided with the knife edge of the symmetrical oblique cone tangent plane, the function that quick drill is attacked mainly are improved, and is provided fast
Speed is discharged scrap and develops the structure of improvement, but inventor thinks to increase fast effect rate, still there is a need to improve
Where.
The content of the invention
Present invention is primarily intended to, increased can quickly chip breaking, dust lead with reinforcing screw rod toughness, make its can reduce with
When work package is contacted, not only with quick cutting function, can more strengthen the bulk strength of screw, it is to avoid screw is during brill is attacked
Fracture, accelerates to attack the screw person for boring benefit so as to reach.
Self-tapping screw of the present invention, is that, by two kinds of different preparation methods, finished product can be quickly made in the shaping by two steps,
Detailed description is, self-tapping screw improved structure is broadly divided into the structure of two parts, including a body of rod with extended by body of rod one end
The brill of formation attacks portion；Wherein, the body of rod is provided with dust lead portion and threaded portion, and wherein dust lead portion one end is threaded portion, and which is by threaded portion
Extend to the other end and form spiral helicine dust lead portion, the dust lead portion has groove portion；Wherein, the dust lead portion of the body of rod is formed with threaded portion
Step is, by a mould with rolling forming, the mould is provided with two sections of helical teeth tooth stricture of vaginas of different shapes, wherein the helical teeth tooth stricture of vagina bag
The helical teeth tooth stricture of vagina of dust lead portion shape and threaded portion shape helical teeth tooth stricture of vagina have been included, first by the body of rod pressuring method being rolled in the mould
Spreading and form threaded portion and dust lead portion, and the dust lead portion one end still retains a latter end for threadless cylinder after shaping；Wherein
The brill attacks portion's forming step, above-mentioned dust lead portion one end is retained unfashioned cylinder and is put between a upper/lower die, should
Upper/lower die pressurizes into the structure for boring the portion that attacks with matched moulds.
The body of rod, be for driving after be locked on and screw togather function on workpiece；Wherein connection is located at the dust lead portion one end
Portion is attacked to bore, the brill portion of attacking has a pair of blades, the blade tip extends and forms the knife edge；And between blade, it is provided with guidance part,
Wherein, the guidance part extends for connection to dust lead portion, and the dust lead portion is to attack portion one end with spiral from body of rod one end to brill from a rib
Around being formed, followed by rib and be formed at its domatic bottom is groove portion to shape, the rib its extended by first side on an inclined-plane and formed
3rd side of opposed facets, wherein this first at the 3rd between have a plane the second side, definition is first side
Extension forms second side, and second when extending to form the 3rd, the brill portion of attacking is with the swords being symmetrically formed for a pair, the sword for this
With the first inclined-plane, and the second inclined-plane of reverse side relative with first inclined-plane；And, down extended by sword and form first；
And, being extended by first and connect one second, and this second extends connection one the 3rd, the blade top is knife edge,
The blade is a pair reversely corresponding inclined-plane swords compositions, and a pair of inclined-plane swords of the blade are equipped with longitudinal groove of extension, and this
One with the 3rd gradient with high low head, and this first higher than the 3rd, and this second is inclined-plane, be by
This first extends to form second of slope and extend to the 3rd toward descending again and extended connects；This second is prolonged by knife edge
Stretch and be formed as guiding chip removal function, specific definition is to be extended to form second by knife edge top with slope, and extends for connection to lead
The groove portion origin or beginning in bits portion, with the function of aiding in acceleration and smooth chip removal when making drill bit be contacted with work package whereby, and then is reached
The efficiency that tool speed is attacked.
Further, the vertical section of the rib is chevron, and which is by inclined-plane first when extending form opposed facets second.
Further, chip breaking portion is provided with the 3rd nearly knife edge, the chip breaking portion extends by the end edge of second
To the 3rd, which can be extended laterally located at the 3rd, can also be laterally partly to extend the 3rd.
The structure of innovative combination, can improve the extension auxiliary region with cutting when drill bit is contacted with work package and can drop whereby
The feature of low-frictional force, and the function with appropriate guiding waste material to work-piece surface, and then reach what tool quick drill was attacked
Efficiency.
Description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is another close-up schematic view for implementing rib of the present invention.
Fig. 3 is another amplification stereogram for implementing blade and dust lead portion of the present invention.
Fig. 4 is the fabrication steps program schematic diagram of the present invention.
Fig. 5 is blade of the present invention and dust lead portion faces enlarged drawing.
Fig. 6 is the side-looking enlarged drawing of blade of the present invention and dust lead portion.
Fig. 7 is another cross-sectional schematic diagram of amplification for implementing rib of the present invention.
Description of reference numerals：
The body of rod --- --- -1
Threaded portion --- -2
Dust lead portion --- -3
Brill attacks portion --- and -4 '
Blade --- --- -42
Rib --- --- --- -31
Knife edge --- --- -42a
Groove portion --- --- -314
First side --- -311
Second side --- -312
End --- --- -21
Origin or beginning --- --- -41
First face --- 4a
Second face --- 4b
First --- -411,411 '
Second --- 412,412
3rd --- 413,413
Groove --- --- -- 421
Chip side --- 422,423
End --- --- 3a
Cylinder --- -- 4
3rd side -- 313
Chip breaking portion --- 414
Width 31a1.
Specific embodiment
In order to be fully understood by the present invention, will below enumerate preferred embodiment and coordinate accompanying drawings to elaborate, hereby match somebody with somebody again
The schema for closing present pre-ferred embodiments is further illustrated as rear, to making to be familiar with the personage of correlation technique of the present invention, obtain according to
The statement of this specification is implemented according to this, and which is not limited to the technical scope of the present invention.
First, please refering to as first with Fig. 5 and Fig. 6 shown in, self-tapping screw improved structure of the present invention, including：One has
The body of rod 1 of screw head, 1 one end of the body of rod extend to form the externally threaded threaded portion 2 of tool, and 2 one end of threaded portion extends to form helical form
Dust lead portion 3, the dust lead portion 3 extends and forms brill and attack portion 4 ', and the brill is attacked 4 ' tip of portion and extended and forms symmetrical a pair of blades 42；Its
In, the threaded portion 2 to refer to and screw togather function on workpiece to be locked on after driving；The dust lead portion 3, be by a rib 31 from
The extension of 2 end of threaded portion is spirally surrounded on the body of rod 1 and is formed, and wherein 31 vertical section of rib is chevron；And, the rib of the spiral
31 its chevron bottom extend to form subsidiary groove portion 314, the rib 31 its extended by first side 311 on an inclined-plane and form relatively oblique
Second side 312 in face, be specifically this first while 311 with this second while 312 be inclined-plane, wherein, a rib 31 starts from screw thread
2 end 21 of portion, which terminates in brill and attacks 4 ' origin or beginning 41 of portion；The brill attacks portion 4 ', with the first face 4a and relative with first face 4a
Second face 4b of reverse side, the first face 4a extend connection one second 412 by one first 411, and this second 412 extends connection
One the 3rd 413；The second face 4b extends connection one second with corresponding first 411 ' contrary with first face 4a
412, this second 412 extend connection one the 3rd 413；And, the brill is attacked 4 ' top of portion and is provided with blade 42, and the blade 42 is
A pair contrary corresponding inclined-plane sword compositions, the top of a pair of inclined-plane swords is knife edge 42a, and the inclined-plane Ren Po sides of the blade 42 are equipped with
Longitudinal groove 421 of extension, a pair of blades, 42 sword while each extend over down form a pair of chips while 422,423, the chip side
422nd, 423 extend to the bottom that brill attacks portion 4 '；And, this first 411 with the 3rd 413 be with the high low head gradient,
And this first 411 413 higher than the 3rd, this second 412 is inclined-plane, is to form slope by this first 411 extension
Second 412 of face extends to the 3rd 413 extended connections toward descending again；Wherein, the brill attacks second 412 sword in portion 4 '
Cutting edge of a knife or a sword starts to extend and is formed, and second 412 is to connect the 314 end 3a of groove portion that the dust lead portion 3 attacks portion 4 ' closest to the brill；With
And, the chip side 422,423 extends the rib 31 for linking dust lead portion 3, and wherein a pair of chip sides 422,423 are tool angle of inclination,
And be the corresponding inclination of different angles each other, wherein inclination angle of the angle of inclination on chip side 422 less than the rib 31 in dust lead portion 3
Degree.
The blade 42, with the first face 4a, and the second face 4b of reverse side relative with first face 4a, first face 4a
First 411 extend connection one second 412, the second face 4b is with contrary with first face 4a corresponding first 411
Extend connection one second 412, this second 412 extend connection one the 3rd 413,42 top of blade are knife edge 42a, should
By a pair, reversely the sword of inclined surface is constituted knife edge 42a relatively, and the corresponding sword of knife edge 42a is equipped with longitudinal tooth of extension
Stricture of vagina 421, this first 411 with the 3rd 413 be with the high low head gradient, and this first 411 than the 3rd 413 compared with
Height, this second 412 is inclined-plane, is to be extended to form second 412 of slope and extend to this toward descending again from this first 411
3rd 413 extended connections；Wherein, second 412 of the blade 42 has guiding slope function, and this second 412 is straight
Connect and extend the 314 end 3a of groove portion for connecting the dust lead portion 3 closest to the blade 42；And, knife edge 42a has the inclined-plane for extending
Slope side, the slope side of knife edge 42a are equipped with longitudinal groove 421 of extension, and a pair of knife edge 42a are each extended over
Side 422,423, the chip side 422,4232 extend the rib 31 for linking dust lead portion 3, and the wherein chip side 422 is inclined side, and should
Each other with different angle of inclination correspondences, the wherein angle of inclination on chip side 422 is less than dust lead portion 3 on a pair of chip sides 422,4232
Rib 31 angle of inclination, there is when the knife edge 42a of the blade 42 is contacted with work package whereby auxiliary to accelerate and smoothly chip removal
Function, and then reach the tool efficiency attacked of speed.
Invention is another to be embodied as shown in Fig. 2, Fig. 3 and Fig. 7, and the dust lead portion 3 is from 2 one end of screw rod to sword from a rib 31
Spirally around being formed, its vertical section of rib 31 is chevron, followed by the 31 chevron bottom of rib and extends to groove for cutting edge of a knife or a sword 42a one end
Portion 314, the rib 31 its by an inclined-plane first when 311 extend and form the 3rd of opposed facets 313, wherein first side
311 and the 3rd between 313 is flat edge with when second 312, be specifically this first while 311 with the 3rd while it is 313 equal
For inclined-plane, and it is that biphase corresponding inclined-plane forms mountain shape, is second side 312 and for plane on mountain top.
As shown in fig. 7, the elevational schematic of the rib 31 for the self-tapping screw of the present invention, which is prolonged by first side 311 on inclined-plane
Stretch the 3rd side 313 to form opposed facets, this first at 311 and the 3rd 313 between for a plane the second side 312, its
In this first while 311 with the 3rd while 313 angle of inclination with know it is identical in the state of because first side 311 with this
Three 312 when increased the second of a plane between 313 relative tilt, be that the width 31a1 of this its lowermost end increases, by
The width 31a1 of bottom increases, the relative intensity for also increasing 3 shaft body of dust lead portion, improves the intensity in the dust lead portion 3 to keep away
Exempt to be broken off or damage because of high speed torsion stress.
As shown in figure 4, for the present invention two-part fabrication steps, first one step for the body of rod 1 dust lead portion 3 and screw thread
2 forming step of portion is, formed thereby using a mould (not shown) for being provided with two sections of helical teeth tooth stricture of vaginas of different shapes, the helical teeth tooth stricture of vagina
The helical teeth tooth stricture of vagina of dust lead portion shape and the helical teeth tooth stricture of vagina of threaded portion shape are included, by the body of rod 1 rolling pressurization on a mould
Mode spreading and form threaded portion 2 and dust lead portion 3, and 3 one end of dust lead portion still retains a latter end for threadless post after shaping
Body 4；Come again, its two step is attacked portion 4 ' for brill and is configured to, above-mentioned 3 one end of dust lead portion is retained into unfashioned cylinder 4 and is put into one
Between upper and lower mould, the structure to form that brill attacks portion 4 ' that the upper and lower mould matched moulds is pressurizeed.
Present configuration advantage is:1. the brill attack portion 4 ' the tip of a pair of blades 42 extend formed the knife edge and blade 42 it
Between set second 412 groove portion 314 for extending for connection to dust lead portion 3；The brill is attacked the blade 42 in portion 4 ' and is connect with work package whereby
With the function of aiding in acceleration and smooth chip removal when tactile, and then reach the efficiency that tool speed is attacked；2. the 3rd 413 of the blade 42
Chip breaking portion 414 is provided with nearly knife edge 42a, the chip breaking portion 414 extends to the 3rd 413 by the end edge of second 412,
Its with it is parallel to should blade 42 arrange, which can be extended laterally located at the 3rd 413 bottoms, laterally partly can also be extended
In the 3rd 413, wherein, the chip breaking portion 414 is slightly to protrude from the horizontal plane of the 3rd 413, in other words, the chip breaking portion
414 is the rib that protrusion is formed on the face of the 3rd 413, and its function is attacked when self-tapping screw carries out brill on work piece
When, as knife edge 42a is helical form carrying out boring the scrap produced by attacking, can through the design of the protrusion rib of chip breaking portion 414
Considered to be worth doing with open spiral so as to become chip breaking, chip breaking can be made whereby to be able to smoothly be taken advantage of a situation by the slope shape of second 412 and slide to
The groove portion 314 in the dust lead portion 3, continues and is smoothly pushed against to outside the hole of work piece by the groove portion 314.
Preparation method advantage of the present invention is:1. first dust lead portion 3 and threaded portion 2 are formed to roll, then brill is formed with matched moulds attack portion
4 ', can quickly and accurately pairing is connected to the groove portion 314 in dust lead portion 3 for second 412.
Innovative combination structure and preparation method, can improve the brill and attack when portion 4 ' is contacted with work piece with quick cutting whereby
Feature, and the function with appropriate guiding scrap to work-piece surface, reduce the spoilage of self-tapping screw, and then reach tool
The efficiency that quick drill is attacked.
Embodiment described above is only to absolutely prove the present invention and the preferred embodiment lifted, the protection model of the present invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (5)
1. a kind of self-tapping screw improved structure, which has a body of rod, and the body of rod one end extends to form threaded portion；The threaded portion one end
Extend and form a dust lead portion, the dust lead portion is extended to link by the threaded portion end and spirally formed, its spiral helicine rib bottom shape
Into the groove portion for having subsidiary extension；And, the dust lead portion end extends to form brill and attack portion, and the brill is attacked portion end and extends to form a counter blade
Portion；It is characterized in that：The blade is to be made up of a pair of reverse slope side sword correspondences, and wherein the blade two ends down extend shape respectively
Chip side in a pair, wherein, each other with different angle of inclination correspondences, the angle of inclination on wherein chip side is less than on a pair of chip sides
The angle of inclination of the rib in dust lead portion；And, this second end for directly extending the groove portion for connecting the dust lead portion.
2. a kind of self-tapping screw preparation method, is broadly divided into two parts the step of self-tapping screw shapes, and shaped structure body is divided into a bar
Body portion with extended the brill for being formed by body of rod one end and attack portion；Characterized in that, the body of rod is provided with dust lead portion and threaded portion, wherein leading
Bits portion one end is threaded portion, and which extends to the other end by threaded portion and forms spiral helicine dust lead portion, and the dust lead portion has groove portion；It is first
First, step one is that dust lead portion and the threaded portion of the body of rod are formed as:One mould with two sections of helical teeth tooth stricture of vaginas of different shapes,
Wherein the helical teeth tooth stricture of vagina includes the helical teeth tooth stricture of vagina of dust lead portion shape and threaded portion shape, first by the body of rod rolling pressuring method
Threaded portion and dust lead portion are formed in the mould spreading, and the dust lead portion one end still retains a latter end for threadless post after shaping
Body；Continue, step 2 is to bore the portion of attacking to be formed as, and above-mentioned dust lead portion one end is retained unfashioned cylinder and is put into a upper and lower mould
Between tool, the upper and lower mould is pressurizeed to form the structure for boring the portion that attacks with matched moulds.
3. a kind of self-tapping screw improved structure, including：One body of rod, is provided with a threaded portion, and the threaded portion one end extends connection one and leads
Bits portion；One brill attacks portion, is to be extended to be formed by the dust lead portion one end, and a blade, the blade are to be extended to be formed by the dust lead portion one end,
Its end extends to form knife edge；Characterized in that, the dust lead portion, be from a rib from screw rod one end to the blade one end with spiral
Around being formed, the rib vertical profile is chevron to shape, and be formed at its bottom of chevron that followed by rib is groove portion, and which is oblique by one for the rib
The first of face when extending to form plane second, this second while extend shape it is in the slope 3rd while, wherein first side with should
3rd side is that biphase corresponding inclined-plane forms mountain shape, is second side and for plane on mountain top；The blade, with the first face,
And the second face of reverse side relative with first face, first face has contrary corresponding first to extend connection with second face
One second, and this second extend connection one the 3rd, is provided with chip breaking portion at the 3rd near knife edge of the blade, this is disconnected
Bits portion extends to the 3rd by the end edge of second, and, with parallel to should be set by blade, which laterally can prolong for which
It is stretched at the bottom of the 3rd, it is also possible to laterally partly extend the 3rd；And, the knife edge is a pair relative hypotenuses
Sword is constituted, and the sword of the relative hypotenuse of the knife edge is provided with longitudinal groove gradient of extension, and this second is inclined-plane, be by this first
Portion extends to form second of slope and extend to the 3rd extended connection toward descending again, and this second directly extends and connect
The end of the groove portion in the dust lead portion, is accelerated with auxiliary when the knife edge of the blade is contacted with work package whereby and smoothly chip removal
Function, and then reach the efficiency that tool speed is attacked.
4. a kind of self-tapping screw improved structure, a body of rod, are provided with a threaded portion, and the threaded portion one end extends one dust lead portion of connection；
One brill attacks portion, is to be extended to be formed by the dust lead portion one end, and which is provided with blade；And, the dust lead portion, it is by screw thread by a rib to be
Portion's initiating terminal is attacked spirally around being formed to the brill in portion end, and the rib vertical profile is considered as chevron, followed by spiral helicine rib
Be formed at its bottom of chevron is groove portion；And, the dust lead portion extends to form blade, and the blade end extends to form knife edge；Its
It is characterised by：The dust lead portion is spirally to be surround to be formed from a rib from the screw rod one end to the knife edge one end, and the rib is indulged
Cut open as chevron, followed by the rib chevron in its bottom is groove portion, the rib its extended by first side on an inclined-plane and form plane
Second side, this second while extend shape it is in the slope 3rd while, wherein this first is biphase corresponding scarf while with the 3rd
Cheng Shanzhuan, is second side and for plane on mountain top；The blade, with the first face, and reverse side relative with first face
Second face, first face have contrary corresponding first to extend connection one second with second face, and this second is prolonged
Connection one the 3rd is stretched, wherein, chip breaking portion is provided with the 3rd nearly knife edge of the blade, the chip breaking portion is by the end of second
While start to extend to the 3rd, which is that to should be set by blade, the knife edge be made up of the swords of a pair relative hypotenuses, the sword
The sword of the relative hypotenuse of cutting edge of a knife or a sword is provided with longitudinal groove of extension, and this first is that, with the high low head gradient, this with the 3rd
Two is inclined-plane, is to be extended to form second of slope and extend to the 3rd extended company toward descending again from this first
Connect, this second end for directly extending the groove portion for connecting the dust lead portion, when making the knife edge of the blade contact with work package whereby
With the function of aiding in acceleration and smooth chip removal, and then reach the efficiency that tool speed is attacked.
5. a kind of self-tapping screw improved structure according to claim 4, it is characterised in that the chip breaking portion its laterally can prolong
It is stretched at the bottom of the 3rd, it is also possible to laterally partly extend the 3rd.
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| Application Number | Priority Date | Filing Date | Title |
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| TW104136714 | 2015-11-06 | ||
| TW104136714 | 2015-11-06 |
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| CN201610597638.7A Active CN106678152B (en) | 2015-11-06 | 2016-07-27 | Improved structure and manufacturing method of self-tapping screw |
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| TW (1) | TWI611112B (en) |
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| TWI772682B (en) * | 2019-09-24 | 2022-08-01 | 吉瞬興業股份有限公司 | Drilling screw structure |
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| EP0535193B1 (en) * | 1991-04-17 | 1996-02-28 | SFS Industrie Holding AG | Method of manufacturing an unthreaded cylindrical shaft section on a fastener bolt or fastener element |
| CN101787998A (en) * | 2009-01-23 | 2010-07-28 | 陈河田 | Drilling screw |
| CN102179458A (en) * | 2010-12-31 | 2011-09-14 | 周锡轩 | Manufacturing method of tooth pattern and mould assembly thereof |
| TW201312013A (en) * | 2011-09-05 | 2013-03-16 | Homn Reen Entpr Co Ltd | Self drilling screw structure |
| TW201428192A (en) * | 2013-01-11 | 2014-07-16 | yong-ming Chen | Structure and manufacturing method of self-tapping screws |
| CN204572688U (en) * | 2015-05-08 | 2015-08-19 | 天津市巨翔金属制品有限公司 | High strength steel structural member quick attack nail |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW543720U (en) * | 2002-05-31 | 2003-07-21 | Hsiao Kang Shan Screw Co Ltd | High-speed drill |
| EP2289647A1 (en) * | 2009-08-31 | 2011-03-02 | Ying-Chin Chao | Method for manufacturing self-tapping screw with helical chip discharge channel and self-tapping screw |
| TW201132864A (en) * | 2010-03-31 | 2011-10-01 | zong-zheng Lai | Tail-drilling screw and forming processing method thereof |
| JP6259826B2 (en) * | 2012-07-23 | 2018-01-10 | シンプソン ストロング タイ カンパニー インコーポレーテッド | Fastener with drill pilot and reverse twist region |
| TWM491742U (en) * | 2014-06-13 | 2014-12-11 | yong-ming Chen | Fast-tapping screw |
| TWM495440U (en) * | 2014-11-21 | 2015-02-11 | Chuan Bor Co Ltd | Improved drill portion of self-tapping screw |
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2016
- 2016-07-27 CN CN201610597638.7A patent/CN106678152B/en active Active
- 2016-08-04 TW TW105124706A patent/TWI611112B/en active
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|---|---|---|---|---|
| DE3242926A1 (en) * | 1982-11-20 | 1984-05-24 | Schrauben Betzer GmbH & Co KG, 5880 Lüdenscheid | Self-tapping screw |
| EP0535193B1 (en) * | 1991-04-17 | 1996-02-28 | SFS Industrie Holding AG | Method of manufacturing an unthreaded cylindrical shaft section on a fastener bolt or fastener element |
| CN101787998A (en) * | 2009-01-23 | 2010-07-28 | 陈河田 | Drilling screw |
| CN102179458A (en) * | 2010-12-31 | 2011-09-14 | 周锡轩 | Manufacturing method of tooth pattern and mould assembly thereof |
| TW201312013A (en) * | 2011-09-05 | 2013-03-16 | Homn Reen Entpr Co Ltd | Self drilling screw structure |
| TW201428192A (en) * | 2013-01-11 | 2014-07-16 | yong-ming Chen | Structure and manufacturing method of self-tapping screws |
| CN204572688U (en) * | 2015-05-08 | 2015-08-19 | 天津市巨翔金属制品有限公司 | High strength steel structural member quick attack nail |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI611112B (en) | 2018-01-11 |
| CN106678152B (en) | 2018-11-13 |
| TW201716696A (en) | 2017-05-16 |
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