CN208587374U - Tightening member and corresponding piercing element - Google Patents
Tightening member and corresponding piercing element Download PDFInfo
- Publication number
- CN208587374U CN208587374U CN201820262684.6U CN201820262684U CN208587374U CN 208587374 U CN208587374 U CN 208587374U CN 201820262684 U CN201820262684 U CN 201820262684U CN 208587374 U CN208587374 U CN 208587374U
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- China
- Prior art keywords
- tooth
- tightening member
- front side
- longitudinal axis
- cutting tip
- Prior art date
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- 238000005520 cutting process Methods 0.000 claims abstract description 66
- 238000005553 drilling Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims description 44
- 238000005299 abrasion Methods 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000012815 thermoplastic material Substances 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000003981 vehicle Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 13
- 239000000835 fiber Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
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- 230000002708 enhancing effect Effects 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000011208 reinforced composite material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004638 Duroplast Substances 0.000 description 1
- 229920000965 Duroplast Polymers 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 102220558276 Lipocalin-like 1 protein_C45W_mutation Human genes 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Classifications
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- 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
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/083—Self-drilling rivets
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
-
- 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
- F16B25/0052—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 the ridge having indentations, notches or the like in order to improve the cutting behaviour
Abstract
The utility model relates to a kind of self-drilling tightening member and corresponding piercing elements, the tightening member has hollow body, the hollow body includes expansible section and cutting tip, wherein the cutting tip includes the tooth for drilling, these teeth are set up substantially circularly around the center of the cutting tip, wherein, the tooth has the front side section on top and the front side section of lower part, wherein the top and the front side section of lower part at least partly extend straight, wherein relative angle of the front side section on the top about the longitudinal axis of the tightening member is different from the relative angle between the longitudinal axis of front side section and the tightening member in the lower part, and/or the tooth offset, so that (i) tooth is about the distance at the center surrounded away from these teeth with offset, and/or (ii) described tooth prolongs in different directions It stretches.
Description
Technical field
The utility model relates to a kind of self-drilling tightening member and a kind of corresponding piercing elements.
Background technique
In the field of the equipment for being fastened on component at least another component it may be desirable that in two components
At least one in set up hole.The hole can be set up using drilling device and drill bit, or if tightening member at its end
There is suitable piercing element at portion, then even can set up hole by rotating tightening member itself during insertion.No matter
How, boring procedure can influence the integrity of hole peripheral region.For example, boring procedure can cause brittleness at hole edge or
Load is concentrated, when load is applied to affected area (kompromittierter by the tightening member for passing through hole insertion
When on Bereich), this will damage the function integrity of component.The problem is especially in the presence of in nonmetallic materials such as composite material
In the case where.Therefore, it must adapted to corresponding material for setting up the piercing element in hole.In the prior art, especially exist
Be related to composite material shows following trend in the prior art: in the integrity for not changing the material around the hole to be set up
In the case where set up hole, such as due to burning, fusing or the layering (Delaminierung) of material.In addition, the prior art is shown
Following trend out: the non-uniform bore dia in terms of depth is realized.In addition, the prior art also shows following trend: for boring
The drilling power in hole and/or the boring torque applied are excessively high, and/or show the comprehensive teeth portion abrasion of sawtooth, and/or be used for
The overlong time of drilling.
It should not ignore herein: tightening member is designed to, by arranging that at least two components make hole pierce or drill through, and
Tightening member is held in place after piercing through or drilling these layers, these components are kept together.Therefore, self-drilling
Tightening member is designed to, only once pierced holes or drilling bore hole.The component of drilling is designed to disposable.For piercing through
Or the element of self-drilling tightening member or the material of component of drilling are considered as cost efficient, because of the use of tightening member
In the part that pierced holes or the component of drilling are even held in place, and not restore after piercing.Therefore, for drilling
Material usually has low hardness.
Utility model content
The purpose of this utility model is to provide a kind of tightening member, the tightening member about in above-mentioned advantage at least
One and/or the ability about at least one component itself in component to be tightened improve, and the component is especially fine
Tie up the composite material of enhancing.
The main points of the utility model are using cutting tip, and the cutting tip has tooth, these teeth are set up around rotation axis,
Wherein the tooth has the best geometry about drilling.The utility model recognizes, the geometry of the tooth of cutting material
It is very important.The utility model recognizes, in conjunction with overcoming disadvantages described above and especially fibre-reinforced compound
Apply smooth hole in material, the geometry of teeth portion can be designed with regard to two features: (a) front side of the tooth of cutting material exists
It include different designs at least two sections, these sections are respectively provided at least one substantially straight section, and/or
(b) the tooth offset ground orientation of cutting material.
Involved in two different designs of the front side of tooth, it is considered to be top and lower part front side section, and
The front side section on top has relative angle, the relative angle and front side and rotation in lower part about the longitudinal axis of rotation axis
Relative angle between the longitudinal axis of axis is different.When starting drilling, the front side section on top is used.Tooth rotation, and by
It may be worn in the front side section of abrasion, top, and the front side section of lower part can be after about the 50% of cutting thickness
Used part, and while especially leaving material at the end of drilling used part.Especially when use glass fibre
When the plastics of enhancing, so that the angle about longitudinal axis of section on front side of described (top) is negative or be equal to 0 °, because being positive
Cutting angle fiber may be torn out from material, this will cause increase layering.Especially when the modeling of drilling glass fiber reinforcement
When material, the positive angle about longitudinal axis of section is preferably as being conducive to pulling to fiber into saw on front side of (lower part).
It is that the tooth can have offset about the distance at the center surrounded away from these teeth involved in the offset of tooth.
It is described to deviate the offset for being preferably related to the upper part of tooth.The offset can be used to prevent from being used as the tooth of saw and wanting
Puncture portal or the material that drills between friction.It can be matched with the offset, during entire puncture or drilling
Obtain at least substantially constant bore dia.
The utility model proposes a kind of self-drilling tightening member with hollow body.The hollow body includes expansible
Section and cutting tip, wherein cutting tip includes the tooth for drilling, these teeth around the center of cutting tip substantially circularly
It sets up.The tooth (a) has the front side section on top and the front side section of lower part, their at least partly straight extensions, wherein
The front side section on top about tightening member longitudinal axis have relative angle, the relative angle with lower part front side section and
Relative angle between the longitudinal axis of tightening member is different, and/or (b) tooth has offset so that (i) tooth about away from
The distance at the center that these teeth are surrounded has offset, and/or (ii) described tooth extends in different directions.
When the tightening member enters or when leaving the material in hole to be set up, above mentioned teeth portion design is provided and is caused point
Layer, and/or the uniform bore dia in terms of depth.Additionally, teeth portion abrasion and drilling power and boring torque are respectively positioned on suitable
In the range of.Preferably, drilling power can be less than 200N, preferably smaller than 170N, more preferably less than 160N, more preferably less than
150N and/or the boring torque can be less than 10Nm.
In the present specification and term according to the present utility model " tightening member " is including can be used for a component
Any element being fastened on another component.Two components can touch each other in flat facial section.One of two components can
To be plate.Another component can be another plate or layer mechanism.Preferably, one or more materials hole to be drilled can be selected from following
Group: glass and carbon fiber thermal thermoset material and thermoplastic material, vehicle body steel (XCG10/10, P260, SPFC590,
) and aluminium SABC1480.Can by tightening member fasten two components can be sheet or at least have class it is plate like
Cross section.During tightening member is inserted into, the hole can be built up at least one of two components.Tightening member can
To include arm or at least one deformation section, to be joined in one of component, especially it is joined to and sets in porose component, and
The mating surface collective effect or reciprocation of arm or deformation section and tightening member, so that two components touch each other, mode
Are as follows: it is exerted a force on two components by mating surface and by arm or deformation section.Described two components keep together or that
This fastening, mode are as follows: set up mating surface and arm/deformation section between these two parts.Tightening member especially can be
Rivet or clip.
The diameter in hole can be between about 4mm and about 20mm.It is " empty with term according to the present utility model in the present specification
Heart body " include tightening member at least one be hollow section, to ensure, another part of tightening member or another section energy
Enough in hollow body, or ensure the extension of tightening member.Hollow body may include deformable section, so that tightening member phase
For its initial ring week extension.The deformable section can be with mating surface collective effect.
In the present specification and term according to the present utility model " expansible section " includes the deformable of hollow body
Element or changeability section, especially can along transverse to the direction of tightening member or the longitudinal direction of hollow body become
Shape.
In the present specification and term according to the present utility model " cutting tip " includes on tightening member or hollow body
End, the end be it is molding, which especially has tooth, with pass through rotation of the cutting tip about the part in hole to be set up
To set up hole.
In the present specification and term according to the present utility model " tooth " includes at least two dentation elements.In this explanation
In book and term according to the present utility model " teeth portion " includes arching portion or protrusion, and the arching portion/protrusion is substantially along tight
Gu the longitudinal direction of element or hollow body extends, so that the angle portion surrounded between the teeth portion and the longitudinal axis is greater than
45°.Preferably, the angle surrounded between the teeth portion and the longitudinal axis is no more than 30 °.It is further preferred that institute
It states the angle surrounded between teeth portion and the longitudinal axis and is no more than 20 °.Most preferably, the teeth portion and the longitudinal axis it
Between the angle that is surrounded be no more than 10 °.Tooth preferably has following height, this is highly less than about 5mm, it is preferable that the height of teeth portion
In the range of about 1.5mm to 4mm.Preferably, the height of teeth portion is located in the range of about 1.5mm to 3mm.It is highly preferred that
The height of teeth portion is located in the range of about 1.0mm to 2.5mm.Especially, the height of teeth portion can be about 1.9mm.
In the present specification and term according to the present utility model " setting up substantially circularly " includes to element, especially
It is the setting of tooth, allows and circular deviation, the especially described element (tooth) can not be all with the phase away from center
With distance, but one group of tooth can have the identical distance away from center, and another set of pieces compared with first group away from center
It can have (slight) different distance.As long as tooth sets up the hole in a rotating manner, then the whole print of circular shape
As being sufficient.
In the present specification and term according to the present utility model " front side " includes teeth portion relative to direction of rotation position
In the side in front.
In the present specification and term according to the present utility model " top " includes compared with lower section away from hollow body
The farther section of spacing.In this specification and term according to the present utility model " top " includes setting up corresponding section
On the longitudinal end of teeth portion, especially it is built up on the longitudinal end of tightening member.The front side section on top is in tightening member
Longitudinal axis on extension can be located at about 0.1mm to about 0.8mm in the range of, be preferably placed at about 0.2mm to about 0.7mm
In the range of, it is more preferably located in the range of about 0.3mm to about 0.7mm.Longitudinal axis of the front side section on top along tightening member
The extension in direction can be located at about 0.5mm between about 0.7mm, in particular about 0.6mm.Can front side section to top length
Spend and matched about the abrasion of the material during drilling or puncture, the front side section on top may due to its abrasion and grind
Damage, and the front side section of lower part can be the used section after the cutting thickness of cutting about 50%, and especially bore
Section when material is left at the end of hole.
In this specification and term according to the present utility model " lower part " includes compared with upper section away from hollow body
It is spaced lesser section.
In this specification and term according to the present utility model " at least partly straight " includes naked eyes visibility quilt
Be considered straight, wherein allow and straight line small deviation and also be located in the meaning of " straight ".
In this specification and term according to the present utility model " longitudinal axis of tightening member " includes, tightening member tool
There is rotation axis, the rotation axis is parallel to or extends along longitudinally extending (spatial extent) of the tightening member.The art
Language does not require, and tightening member is symmetrical around rotation axis or longitudinal axis, but is not excluded for this point.Term " the longitudinal axis of tightening member
Line " can also refer to the longitudinal axis of hollow member, may be overlapped with the longitudinal axis of tightening member, alternatively, the longitudinal axis of tightening member
The longitudinal axis of line and hollow body can be parallel to each other.The longitudinal axis of the longitudinal axis of tightening member and/or hollow body can with it is described
The center intersection that tooth is surrounded.
In this specification and term according to the present utility model " offset (Versatz) " includes tooth in the following manner
Offset, wherein tooth space center does not have identical distance, is especially different with the distance between the upside of tooth.It can mention
For at least two groups of teeth, wherein each tooth space center distance substantially having the same in every group of tooth, and two of two groups away from
From difference.It can be achieved in that the different distance of the upside relative to tooth: there is the base portion of tooth or foot away from center different
Distance, and/or extend the tooth in different directions, the direction has about the longitudinal axis or rotation axis of tightening member
Different angles.If every group of tooth has different angles about longitudinal axis, it can best observe and set along following directions
Meter, tooth described herein are set up around center in the direction.This offset can be formed by sheet material, wherein by the tooth along two
Different direction bendings.Distance from the upside of tooth to center can be determined as to the longitudinal axis (longitudinal axis to tightening member
Line intersects with center) or rotation axis (rotation axis and center intersect) shortest line.The distance is directly to fasten
Distance measured by the longitudinal axis or rotation axis of element.Therefore relevant distance can be upside the indulging to tightening member of tooth
The projection of the distance of axis is either to the projection of the distance of the rotation axis transverse to respective axis.Term " offset " can wrap
It includes following meanings: providing at least two different tooth groups, these teeth are in the upside of tooth and the longitudinal axis of tightening member or rotary shaft
There is different distances between line.The offset can provide in the following manner, that is, determine the average distance about each group, and
The offset is provided by the different distance with the average distance.Offset can be provided in this way: make sheet metal with two different
Mode is bent about tooth, that is, extends substantially transversely to the bending of the longitudinal direction of tightening member or hollow body, and cause in tooth
Again substantially along the extension of tightening member or the longitudinal direction of hollow body.One group of tooth can be made to be bent close to the center
(towards the first bending of center position), makes another group of tooth further away from the center curvature (first far from center position
Bending).Offset can be readily available by this bending.In the case where tightening member has sheet material, the plate plane can
To be the reference to center.
Relative angle according to a preferred embodiment, between the front side section on top and the longitudinal axis of tightening member
Degree is less than the relative angle between the front side section of lower part and the longitudinal axis of tightening member.This is available about fusing, combustion
The optimum results of burning or layering and/or teeth portion abrasion aspect.
Relative angle according to a preferred embodiment, between the front side section on top and the longitudinal axis of tightening member
Degree be about 0 ° to about 5 ° (especially, the relative angle can be the negative angle about longitudinal axis, it is intended that on
The front side section in portion can be tilted towards direction of rotation (negative angle correspond to top front side section about the longitudinal axis above tooth
The section of line fine rotation along clockwise direction)), and the phase between the front side section of lower part and the longitudinal axis of tightening member
To angle be about 5 ° to about 15 ° (especially, which can be the positive angle about longitudinal axis, it is intended that
The front side section of lower part leaves rotation axis inclination).The front side section on top can have preferred with the longitudinal axis of tightening member
About 90 ° of angle.It is preferred that the front side section on top can have about 89 ° or about 91 ° of angle with the longitudinal axis of tightening member.It is excellent
The front side section for choosing portion can have about 88 ° or about 92 ° of angle with the longitudinal axis of tightening member.It is preferred that the front side portion on top
Section can have about 87 ° or about 93 ° of angle with the longitudinal axis of tightening member.It is preferred that the front side section on top can be with fastening member
The longitudinal axis of part has about 86 ° or about 94 ° of angle.It is preferred that the front side section on top can have with the longitudinal axis of tightening member
About 85 ° or about 95 ° of angle.It is preferred that the front side section of lower part can have about 80 ° of angle with the longitudinal axis of tightening member.Under
The front side section in portion can have about 79 ° or about 81 ° of angle with the longitudinal axis of tightening member.The front side section of lower part can be with
The longitudinal axis of tightening member has about 78 ° or about 82 ° of angle.The front side section of lower part can have with the longitudinal axis of tightening member
There is the angle of about 77 ° or about 83 °.The front side section of lower part can have about 76 ° or about 84 ° of angle with the longitudinal axis of tightening member
Degree.The front side section of lower part can have about 75 ° or about 85 ° of angle with the longitudinal axis of tightening member.Combining this specification
In the context of (deviation) of angle value according to the present utility model, term " about " includes about 2 °, especially 1 °, preferably smaller than
1 °, more preferably less than 0.8 °, more preferably less than 0.6 ° of deviation.
For the setting up of hole, the front side that longitudinal axis or rotation axis about tightening member have angled top can be with
It is related to insertion angle (i.e. tightening member initially enters the angle in material).The insertion angle is about 90 ° either negative
Angle, because positive cutting angle can be such that fiber tears out from material in the fibre-reinforced plastics of sawing.About tightening member
Longitudinal axis or rotation axis have the front side of the lower part of different angle can be related to last machining angle, i.e., tightening member is with this
Last machining angle terminates hole.Last machining angle is about 80 °, here it is assumed that: the value can be substantially reduced drilling power, and can
To cause less single fiber strand.Positive cutting angle seems to be advantageous for being finally completed hole, especially fine with sawing
The plastics of dimension enhancing are associated, because advantageously, fiber is pulled to tooth.
In a preferred embodiment, the offset about center is about 0.10mm to about 0.20mm.Tooth is about center
Offset makes the distance of one of two teeth and another tooth in two teeth it is meant that two teeth or two groups of teeth are established as about center
Distance have the difference of about 0.10mm to about 0.20mm relative to average distance.The distance is measured about the upside of tooth.
It is corresponding reference point on the upside of tooth.By distance of the tooth at a distance from center as the upside of tooth about the average distance away from center
The projection in direction about the longitudinal direction transverse to tightening member measure.Therefore the average distance at teeth portion and center is made
It is the distance between the center and upside of each tooth about transverse to the direction of tightening member or rotation axis longitudinal direction
The average value that all projects measures.The distance of the average distance at the center away from least one tooth in tooth can with away to another
The distance of the average distance at the center of tooth differs about 0.15mm.The distance of the average distance at the center away from least one tooth in tooth
About 0.155mm or about 0.145mm can be differed.The distance of the average distance at the center away from least one tooth in tooth can differ
About 0.14mm or about 0.16mm.The distance of the average distance at the center away from least one tooth in tooth can differ about 0.13mm or
About 0.17mm.The distance of the average distance at the center away from least one tooth in tooth can differ about 0.12mm or about 0.18mm.
The distance of the average distance at the center away from least one tooth in tooth can differ about 0.11mm or about 0.18mm.Away from tooth extremely
The distance of the average distance at the center of a few tooth can differ about 0.10mm or about 0.20mm.About this specification and according to
Term " about " in the context of (deviation) of the value for space length of the utility model includes about 0.009mm, preferably small
In 0.008mm, more preferably less than 0.007mm, the more preferably less than deviation of 0.006mm.
In a preferred embodiment, tooth forms U shape profile about the direction around center.Especially, in circle side
Upward two successive teeth form the supporting leg of U.These teeth can extend in essentially the same direction, and the direction is substantially flat
Row is in the direction of tightening member or the longitudinal axis of hollow body.Therefore these teeth can have following shapes or configuration, the shape
Or configuration is obtained by the way that protrusion to be bent twice in cutting tip so that these around center set up protrusion about away from center
Ranging offset, raised at least part forms tooth herein.Bending can extend substantially transversely to the vertical of tightening member or hollow body
It to direction, and is bent and can be caused in protrusion/teeth portion, they are once more substantially along the longitudinal direction of tightening member or hollow body
The direction in direction extends.One group of tooth can be close to center curvature (towards first bending in the direction at center), and another group of tooth can
To leave the center curvature (the first bending to eccentric direction).It can be by wait puncture or material hole to be drilled
Overall thickness obtains substantially constant bore dia.
According to a preferred embodiment, the offset of the tooth alternately occurs.Preferably, the offset of tooth is adjacent at two
Tooth between alternately.However, the offset is it is also possible that alternately: transformation is equipped with substantially similar or identical orientation by two
The mode of tooth, then immediately at least one tooth, the tooth are deviated about the first two tooth.The offset can have 2-1-2-1-...,
The mode of 3-1-3-1-..., 3-2-3-2-....Other modes are not excluded for, especially " irregular mode " 3-2-1-3-2-
1-... or 3-2-2-3-2-2-....
According to a preferred embodiment, tooth has different height.Correspondingly, two groups of teeth can be formed,
In one group have height more higher than another group.However, these groups can replace, wherein directly immediately following another after one group of tooth
One group of tooth.In this embodiment, once first group of tooth (wherein before starting to set up hole, these teeth have biggish height)
It partly wears, then can obtain sharp cutting seamed edge (wherein these teeth have lower height).
According to a preferred embodiment, the quantity of tooth is less than or equal to 18.Preferably, the quantity of tooth less than 18,
17,16,15,14,13 or 12.This teeth portion design according to the present utility model, these quantity cause good as a result, this is related to
To deterioration, the power for setting up the hole and in the degeee of stratification in exit.
It preferably, can be around tooth be symmetrically set up, so that the tooth is symmetrically set up about central point.To described
Tooth can set it is constant circumferentially-spaced, for amount to 18 teeth it is all around the ring of piercing element in the case of, the center of each tooth
Such as it can be with 20 ° of positioned at intervals.
According to a preferred embodiment, the tightening member includes bar, and the bar axially extends in hollow body,
Bar described herein and the hollow body match, and with mutual collective effect, are driven so that it surrounds longitudinal axis in a rotating manner
It is dynamic, and when applying axial tensile force, expansible section radial deformation.According to the embodiment, can provide has very much
The tightening member of effect, the tightening member can set up hole automatically.
According to a preferred embodiment, tightening member is rivet.
According to a preferred embodiment, rivet may include carrying flange or flange, especially can be tubulose herein
Hollow body be built up in carrying flange and cutting tip between.Hollow body axially extends and can radial expansion.Hollow body can be with
Including the first cylindrical section and the second cylindrical section, first cylindrical section is adjacent with the carrying flange, second column
Shape section is adjacent with the cutting tip.Hollow body can also have the expansible third section in shank or roll form, institute
Stating shank/roller especially has band, when the band extends between the first cylindrical section and the second cylindrical section, institute
Stating band can be folded each other.The bar that can axially extend in hollow body can with hollow body collective effect, so as to by its
Its axis drives is surrounded in a rotating manner, and when applying axial tensile force, by expansible third section radial deformation.
The bar can have broken area, and the broken area is positioned as, when the third section of hollow body radially extends completely
When, flush it with carrying flange.
What cutting tip can be component further includes the part of hollow body.Hollow body can be formed as single together with cutting tip
Component.As alternative, cutting tip can be with hollow body direct or indirect connection.The connection can be it is removable, especially
It is after spreading or during extension.
According to a preferred embodiment, the bar can include the first bar portion section, first bar portion on end
Section extends in the first cylindrical section of hollow body.In addition, the first bar portion section can stretch out outside the carrying flange to hollow body.
According to a preferred embodiment, the bar can include second on the end that the one end with bar is spaced apart
Bar portion section, the second bar portion section are at least partly surrounded by the second section of hollow body, block it axially in hollow body
Lock.
According to a preferred embodiment, the bar can include third bar portion between the first and second bar portion sections
Section, wherein the third bar portion section can have broken area (brechbare Zone), and the third bar portion section can be with
It is established as, so that the breaking portion of third bar portion section is inserted into hollow body when the third section of hollow body radially extends completely
The first section in.
According to a preferred embodiment, the first section of hollow body has inner surface, and the inner surface is equipped with
Clamping jaw (Klauen), to prevent the bar from moving along moving direction.
According to a preferred embodiment, the bar is by means of connection sheet-notch system (Laschen-Kerben-
System it) is fastened in the second section of hollow body.
According to a preferred embodiment, the bar is by being weldingly secured in the second section of hollow body.
According to a preferred embodiment, the expansible third section of hollow body has slit (Schlitze), institute
Slit is stated with band, the band is inserted between the slit.In addition, expansible third section can be flat in transverse center
There is annular atenuator region in face
According to a preferred embodiment, band has abrasive outer surface.
According to a preferred embodiment, the cutting tip of hollow body has the form of hole saw.
According to a preferred embodiment, tightening member is manufactured by molding sheet metal.The metal can be mild steel,
Wrought iron or structural steel, especially at bainitic state (Bainiktzustand), such as DC01, C45E etc..The sheet metal
It can be with roll-in and/or welding.
A kind of method for manufacturing the tightening member with hollow body is further related to, the hollow body includes expansible section
And cutting tip, wherein the cutting tip includes the tooth for drilling, these teeth essentially around cutting tip central circular set
It is vertical.The tooth is arranged by bending twice of the protrusion on cutting tip so that the protrusion about being surrounded away from them in
At least part of the ranging offset of the heart, protrusion described herein forms tooth.As described above, cutting tip can have tooth, the tooth
Including offset, so that the upside of tooth has different distances far from center at least two teeth of the cutting tip.Bending
The longitudinal direction that tightening member or hollow body can be extended substantially transversely to carries out, and bending can cause in protrusion/teeth portion, then
It is secondary substantially to extend along the longitudinal direction of tightening member or hollow body.One group of tooth can be made close to center curvature (towards center side
To the first bending), and another group of tooth is made to leave the center curvature the first of center position (leave bending).
According to a preferred embodiment, sheet material is provided, it can be hollow to obtain with roll-in and welding to the sheet material
Body.Different designs may be implemented by using sheet material manufacture tightening member.Sheet material can more simply be handled than solid.This
Outside, it can easily be deviated with reference to plate plane, the plate plane may be used as the benchmark at the center about tightening member.
A kind of method for drilling in fibre-reinforced composite material is further related to, wherein the cutting tip of rotary body includes
For the tooth of drilling, tooth described herein is set up around the center of cutting tip substantially circularly, wherein cutting tip is used, it is described
Cutting tip includes tooth, and the tooth has the front side section on top and the front side section of lower part, and the front side section is at least partly
Straight to extend, the front side section on the top has a relative angle about the longitudinal axis of rotary body, the relative angle in lower part
Front side and rotary body longitudinal axis between relative angle it is different, and/or (i) tooth have about the distance away from center it is inclined
It moves, and/or (ii) described tooth extends in different directions.
In this specification and term according to the present utility model " fibre-reinforced composite material " includes materials described below,
Such as SMC (with glass fibre thermosetting material, Duroplast mit Glasfaser) or have long glass fibres or carbon
The thermoplastic material of fiber.
In this specification and term according to the present utility model " rotary body " includes the element longitudinally extended, preferably extremely
Small part is rod-shaped or hollow body shape element, power, especially rotary force can be applied on the element, make the rotary body
The longitudinal axis line offset of the rotary body is surrounded in a rotating manner.As described above, the rotary body can be with bar or hollow body
Form construction.
According to the method preferred embodiment, between the front side section on top and the longitudinal axis of rotary body
Relative angle be less than relative angle between the front side section of lower part and the longitudinal axis of rotary body.
According to the method preferred embodiment, between the front side section on top and the longitudinal axis of rotary body
Relative angle be about 0 ° to about 5 °, and the relative angle between the front side section of lower part and the longitudinal axis of rotary body is about 5 °
To about 15 °.
In a preferred embodiment of the method, the offset about center is about 0.10mm to about 0.20mm.
The utility model also provides a kind of piercing element, especially saw or drill bit, which can be self-drilling tight
Gu element, the tightening member illustrates in the present specification.Piercing element has cutting tip, and the cutting tip includes for boring
The tooth in hole, the tooth is set up around the center of cutting tip substantially circularly, and the abrasion of tooth is, in single boring procedure
The high wear of middle tooth at least 20%, especially in materials described below, selected from the following group of the material: glass fibre and carbon fiber
Thermosetting material and thermoplastic material, vehicle body steel (XCG10/10, P260, SPFC590, SABC1480) and aluminium.Preferably, described
The abrasion of tooth is 25% of the height more than tooth.Preferably, the abrasion of the tooth is 30% of the height more than tooth.Preferably,
The abrasion of the tooth is 40% of the height more than tooth.Preferably, the abrasion of the tooth is 50% of the height more than tooth.It is described
The abrasion of tooth can be in the range of about 0.6mm to about 1.5mm.It is highly preferred that the abrasion of the tooth can be located at about 0.7mm
Into the range of about 1.4mm.Most preferably, the abrasion of the tooth can be in the range of about 0.8mm to about 1.3mm.
In one preferred embodiment, the abrasion of the tooth is assumed to so that the geometric match of the tooth in
Hole hole to be drilled and/or it is matched with material hole to be drilled, so that (i) bore diameter is substantially identical during drilling
, and/or the cutting angle of (ii) described tooth changes during drilling.
Further relate to a kind of method for drilling in an at least component.Especially, the component is can be fastened on separately
Component on one component.Especially, tightening member can use in the method as described above.Use the puncture of rotary body
End, the cutting tip includes tooth, and the tooth is for drilling.Cutting tip includes the tooth for drilling, and the tooth is substantially circularly
It sets up at center around cutting tip.Rotate cutting tip, and the tooth is worn after drilling, the high wear of the tooth is extremely
Few 20%.
In conjunction with the explanation of tightening member, the explanation for being especially adapted for use in used similar term is also applied for the side
Method or the piercing element.
Detailed description of the invention
The illustrative embodiments of the utility model are more fully described below with reference to attached drawing.
It is shown in the accompanying drawings below:
Fig. 1 a, 1b show the cutting tip including tooth, and according to the utility model, the tooth is set around center substantially circularly
It is vertical；
Fig. 2 shows the flattening figures according to the tooth of Fig. 1；
Fig. 3 a shows the flattening of the offset of tooth according to the present utility model, isometric view；
Fig. 3 b shows the flattening of the offset of tooth according to the present utility model, isometric view；
Fig. 3 c shows the sketch of the offset of tooth；
Fig. 4 shows the perspective view of self-drilling rivet, and the rivet has cutting tip；
Fig. 5 shows the perspective view of self-drilling rivet, and the rivet has the puncture of another embodiment according to rivet
End；And
Fig. 6 shows the self-drilling rivet of Fig. 5 together with bar.
Specific embodiment
Fig. 1 a and 1b shows the end of self-drilling tightening member 1 by means of simplified diagram illustrating.Tightening member 1 includes
Hollow body 2, the hollow body 2 have cutting tip 3.
Cutting tip 3 includes the tooth 4 for drilling.The rotary mode of hollow body 2 is driven around rotation axis A.It wears
Barbed end 3 includes 12 teeth 4.Tooth 4 is set up around the center of cutting tip 3 substantially circularly.Intersect with rotation axis A at the center
(geschnitten), the rotation axis A is overlapped with the longitudinal axis B of tightening member 1.Tooth 4 is based on showing in Figure 1b with dotted line P
Virtual plane out.
The schematic diagram of tooth 4 is illustrated in detail in Fig. 2.Wherein tooth 4 is flattened in order to preferably illustrate.Tooth 4 has
The front side section 5 on top and the front side section 6 of lower part.The front side section 5 on top and the front side section 6 of lower part are by linear
At.The front side section 5 on top have about tightening member 1 longitudinal axis B relative angle, the relative angle with before lower part
Relative angle between side sections 6 and the longitudinal axis B of tightening member 1 is different.
As can be seen from Fig. 2, the relative angle between the front side section 5 on top and the longitudinal axis B of tightening member 1 is small
In the relative angle between the front side section 6 of lower part and the longitudinal axis B of tightening member 1.Front side section 5 and fastening on top
Relative angle between the longitudinal axis B of element is about 0 °, and between the front side section 6 of lower part and the longitudinal axis B of tightening member 1
Relative angle be about 10 °, the front side section of the lower part has positive angle about longitudinal axis B.
The offset of tooth 4 is shown into 3b in Fig. 3 a.Offset is schematically shown in fig. 3 a, and wherein tooth 4 is along slight difference
Direction extend.If there are two the teeth 4 organized.One group of tooth 4 extends in same direction.Another group of tooth 4 extends in another direction.Two
Group tooth 4 has different angles about the longitudinal direction B of tightening member 1.The base portion of two groups of 4 teeth away from center it is having the same away from
From.The offset can be obtained from the sheet material for forming hollow body 2 and by being bent the tooth 4 along different directions.The tooth 4
Upside about sheet material (base portion) have offset, and the upside of tooth 4 far from center have different distances.It is logical with the difference at center
It crosses around the sheet material of center winding and is characterized by the bending of tooth 4.The bending is more detailed in the sketch of left side in figure 3 c
Carefully schematically show.
Offset is schematically shown in fig 3b, and wherein tooth 4 is offset from one another about the base portion of tooth 4.Come from the angle of manufacture
It sees, tooth 4 shown in Fig. 3 b can be obtained by the double curvature technique to sheet material.Equipped with two groups of teeth 4.One group of tooth 4 is along
One direction is towards center curvature, and another group of tooth 4 is bent along eccentric direction.Each 4 second of bending of tooth.Second
Bending, which is achieved in that, extends tooth 4 substantially along the direction of the longitudinal axis B of tightening member 1.Two-stage type bending causes partially
It moves, to make the upside of tooth 4 that there is offset about sheet material (base portion), and the upside of tooth 4 has different distances far from center.With
The difference at center is characterized by the bending of sheet material and tooth 4 around center winding.The bending is in figure 3 c with the right side
Side sketch illustrates in greater detail.
Fig. 3 c is shown, and the offset about center is about 0.15mm in shown embodiment.In addition, the offset of tooth 4
Between two adjacent teeth 4 alternately.
Figure 4 and 5 show example of the self-drilling rivet as self-drilling fastener 1 according to the present utility model.It should be certainly
The rivet of drilling includes carrying flange 10 and hollow body 2.The hollow body 2 is tubulose and expansible.Ontology 2 at one end on
Including the cylindrical section 11 adjacent with flange 10.On an opposite end, ontology 2 includes cutting tip 3.
In the embodiment shown in figs. 5 and 6, cutting tip 3 is arranged on hollow body 2.
In addition, showing expansible section 7 in embodiment in fig. 4 to fig. 6.Expansible section 7 is located at cylindricality
Between section 11 and cutting tip 3 (Fig. 4) or the end of hollow body 2, the end accommodates the cutting tip 3 or is connected thereto
(Figures 5 and 6).
Fig. 6 shows bar 8, the bar as the example (its embodiment for being also applied for Fig. 4) of the embodiment for Fig. 5
8 axially extend in hollow body 2.Bar 8 can be engaged with driver, so that hollow body 2 is rotated together with cutting tip 3.
According to Fig. 5 and embodiment illustrated in fig. 6, cutting tip 3 is arranged by bindiny mechanism 9, the bindiny mechanism
It is arranged to, separates cutting tip 3 with 2 phase of hollow body during expansible section 7 extends.
Claims (11)
1. a kind of tightening member (1) is self-drilling tightening member (1), have hollow body (2), the hollow body includes that can expand
The section and cutting tip (3) of exhibition, wherein the cutting tip (3) includes the tooth (4) for drilling, these teeth (4) are worn around described
It sets up substantially circularly at the center of barbed end, which is characterized in that
A) tooth (4) has the front side section (5) on top and the front side section (6) of lower part, wherein each section is at least partly
Ground extends straight, wherein the front side section (5) on the top has the opposite of the longitudinal axis (B) about the tightening member (1)
Angle, the relative angle and the phase between the front side section (6) of the lower part and the longitudinal axis (B) of the tightening member (1)
To angle difference, and/or
B) tooth (4) has offset, and wherein i) tooth (4) has about the distance at the center surrounded away from the tooth (4)
Offset and/or ii) tooth (4) extends in different directions.
2. tightening member (1) according to claim 1, which is characterized in that the front side section (5) on the top and
Relative angle between the longitudinal axis (B) of the tightening member (1) is less than the front side section (6) in the lower part and described
Relative angle between the longitudinal axis (B) of tightening member (1).
3. tightening member according to claim 2, which is characterized in that described in the front side section (5) on the top and institute
Stating the relative angle between the longitudinal axis (B) of tightening member (1) is about 0 ° to about 5 °, and described before the lower part
Relative angle between side sections (6) and the longitudinal axis (B) of the tightening member (1) is about 5 ° to about 15 °.
4. tightening member (1) according to claim 1, which is characterized in that the offset about the center is about
0.10mm to about 0.20mm.
5. tightening member (1) according to claim 1, which is characterized in that the offset of the tooth (4) the tooth (4) it
Between alternately.
6. tightening member (1) according to claim 1, which is characterized in that the tooth (4) has different height.
7. tightening member (1) according to claim 1, which is characterized in that the quantity of the tooth (4) is less than or equal to 18.
8. tightening member (1) according to claim 1, which is characterized in that there is bar, the bar is axially described hollow
Extend in body (2), wherein the bar and the hollow body (2) match, so as to mutual collective effect, so that it is with rotation
Mode is driven around longitudinal axis (B), and when applying axial tensile force, makes the expansible section radial deformation.
9. tightening member (1) according to any one of claim 1 to 8, which is characterized in that the tightening member (1) is
Rivet.
10. a kind of piercing element, the piercing element has cutting tip (3), wherein the cutting tip (3) includes for drilling
Tooth (4), these teeth (4) essentially around the cutting tip (3) central circular set up, which is characterized in that the tooth (4)
Abrasion is the high wear at least 20% of the tooth (4) during one borehole, here, material hole to be drilled is selected from following
Material group: glass fibre and carbon fiber thermal thermoset material and thermoplastic material, vehicle body steel and aluminium.
11. a kind of piercing element, wherein the piercing element has cutting tip (3), wherein the cutting tip (3) includes being used for
The tooth (4) of drilling, these teeth (4) essentially around the cutting tip (3) central circular set up, which is characterized in that it is described
The abrasion of tooth (4) is matched with hole hole to be drilled and/or is matched with material hole to be drilled, so that i) bore diameter is in the drilling phase
Between basically the same and/or ii) tooth cutting angle during drilling alternate change.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017001676.3 | 2017-02-22 | ||
| DE102017001676.3A DE102017001676A1 (en) | 2017-02-22 | 2017-02-22 | Fastening element, method for producing a fastener and method for drilling a hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587374U true CN208587374U (en) | 2019-03-08 |
Family
ID=61258230
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820262684.6U Active CN208587374U (en) | 2017-02-22 | 2018-02-22 | Tightening member and corresponding piercing element |
| CN201810154187.9A Pending CN108457953A (en) | 2017-02-22 | 2018-02-22 | Tightening member, the method for manufacturing tightening member and the method for drilling |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810154187.9A Pending CN108457953A (en) | 2017-02-22 | 2018-02-22 | Tightening member, the method for manufacturing tightening member and the method for drilling |
Country Status (3)
| Country | Link |
|---|---|
| CN (2) | CN208587374U (en) |
| DE (1) | DE102017001676A1 (en) |
| WO (1) | WO2018153864A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227822A (en) * | 2018-10-19 | 2019-01-18 | 大连金河精密工具有限公司 | Monolithic cylinder knife |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2062257A (en) | 1934-12-18 | 1936-11-24 | Harry Barker | Tubular saw |
| DK79098A (en) | 1998-06-15 | 1999-12-16 | Tillegreen Poul | Self-drilling dove |
| DE10130681B4 (en) | 2001-06-26 | 2006-10-12 | Reck Engineering Ingenieurbüro für Verbindungstechnik GmbH | Self-drilling blind rivet nut |
| GB2379722B (en) * | 2001-09-12 | 2003-07-30 | Joker Ind Co Ltd | Expansion bolt |
| FR2992698B1 (en) * | 2012-06-28 | 2015-01-02 | Saint Gobain Placo | ANKLE FOR FASTENING IN A WALL |
| WO2015017942A1 (en) * | 2013-08-08 | 2015-02-12 | Bossard Ag | Method for connecting multiple panel-shaped material portions using a hollow rivet |
| FR3021570B1 (en) | 2014-05-28 | 2017-01-13 | Diamoutils | DRILLING TOOL |
-
2017
- 2017-02-22 DE DE102017001676.3A patent/DE102017001676A1/en not_active Withdrawn
-
2018
- 2018-02-20 WO PCT/EP2018/054158 patent/WO2018153864A1/en active Application Filing
- 2018-02-22 CN CN201820262684.6U patent/CN208587374U/en active Active
- 2018-02-22 CN CN201810154187.9A patent/CN108457953A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017001676A1 (en) | 2018-08-23 |
| WO2018153864A1 (en) | 2018-08-30 |
| CN108457953A (en) | 2018-08-28 |
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