CN1101897C - Spiral thread unit of fastener and its threading head and spanner for manufacturing the unit - Google Patents
Spiral thread unit of fastener and its threading head and spanner for manufacturing the unit Download PDFInfo
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- CN1101897C CN1101897C CN99123301A CN99123301A CN1101897C CN 1101897 C CN1101897 C CN 1101897C CN 99123301 A CN99123301 A CN 99123301A CN 99123301 A CN99123301 A CN 99123301A CN 1101897 C CN1101897 C CN 1101897C
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Abstract
The present invention relates to a thread body of a buckling component and a tooth tapping tool and a tooth board used for manufacturing the thread body. A buckling component is provided with an inner thread body and an outer thread body which are mutually engaged. Each tooth flank of the inner thread body or the outer thread body close to a tooth root part forms an inclined cross section in order to increase the combining force of the buckling component in any thread sleeve direction. Thus, when the inner thread body and the outer thread body are forward or reversely and spirally sheathed, the inner thread body and the outer thread body can be respectively outward expanded, supported, pushed, compressed and tightened to be mutually and tightly engaged. The tooth tapping tool and the tooth board are used for respectively manufacturing the inner thread body and the outer thread body with inclined cross sections.
Description
The present invention relates to a kind of threaded body of fastener and make and to use cutter, the tooth that particularly relates to a kind of threaded body of fastener and be used for making this threaded body is attacked and dental lamina.
As shown in Figure 1, it is a kind of threaded body part sectional view of existing fastener, this fastener 1 comprises the outside thread body 12 (for example bolt) that an internal thread body 11 (for example nut) and is used for and internal thread body 11 is meshed, form the two adjacent teeth abdomen of an interior crown 111 of internal thread body 11, be respectively a leading interior flank 112 and a back with interior flank 113, intersect with interior flank 113 leading interior flank 112 that two interior crowns are 111 and back becomes tooth roots 114, this outside thread body 12 has multi-turn external crown 121, and each external crown 121 is by forming a leading outer flank 122 and back intersecting with outer flank 123.
As shown in Figure 2, it is the use schematic representation of a kind of existing fastener and workpiece, in being somebody's turn to do, outside thread body 11,12 can be respectively a nut 100 and a bolt 101 (also can be the combination of other mesh form, because the start principle is identical, at this only with regard to nut, bolt explains), and cooperatively interact in conjunction with two workpieces 102, when this internal thread body 11 with respect to outside thread body 12 swivel nut and when propping up above-mentioned workpiece 102 left, this internal thread body 11 can be subjected to workpiece 102 reaction force and with respect to outside thread body 12 displacement to the right, flank 122 outside flank 112 butt outside thread bodies 12 leading in this internal thread body 11 leading, and generation frictional force, in resisting, outside thread body 11, the displacement that produces because of vibrations between 12 gets loose, because in existing fastener 1 is intermeshing, outside thread body 11,12 have the nargin of screwing togather, it is exactly the tooth root dia of internal thread body 11, can be greater than the crown footpath of outside thread body 12, in making whereby, outside thread body 11,12 are rotated the state that can be in the pine cover when screwing togather relatively, so when fastener 1 runs into stronger vibrations, in this fastener 1, outside thread body 11,12 are easy to thereby get loose.
As shown in Figure 3, it is the threaded body part sectional view of another kind of existing fastener, for improving above-mentioned shortcoming, the manufacturer designs the threaded body of another kind of fastener 6, fastener 6 and above-mentioned fastener 1 are roughly the same, comprise an internal thread body 61, one outside thread body 62, a few are leading, the back is with interior flank 611,612, a few are leading, the back is with outer flank 622,623, a few external crown 621, a few tooth roots 613 and an axis of thread 63, and this back is that a back is with angle 64 with the angle between the interior flank 612 and the axis of thread 63, in order to increase the associativity of this fastener 6, the back of this internal thread body 61 forms a back with oblique section 614 with interior flank 612 in the part near tooth root 613, above-mentioned back is an oblique angle 65 with the angle between the oblique section 614 and the axis of thread 63, and this oblique angle 65 less than the back with angle 64.
Cooperate swivel nut situation shown in Figure 2, when this internal thread body 61 (nut 100) is subjected to reaction force displacement to the right, the external crown 621 of this outside thread body 62 (bolt 101) can begin to be tight against the back with oblique section 614 on, and along this back with oblique section 614 displacements up to the back with outer flank 623 butts after with interior flank 612, the compression of more and more tightening with oblique section 614 after this outside thread body 62 just is subjected to is urgent, and has increased the combination force of fastener 6.
Not excessive user is with internal thread body 61 during with the mutual swivel nut of opposite direction and outside thread body 62, as being rotated to bolt 101 relatively with the other end, nut 100 is inserted in, also similarly be among Fig. 3 this internal thread body 61 with respect to outside thread body 62 swivel nut to the right, treat this internal thread body 61 to be subjected to reaction force and to left dislocation, and last till the leading outer flank 622 of this outside thread body 62 of flank 611 butts in this internal thread body 61 leading, so the external crown 621 of this outside thread body 62 can't be subjected to the back compressing with oblique section 614 of internal thread body 61, and lose the effect that increases these fastener 6 combination forces, therefore, in judgement is somebody's turn to do earlier in the use, outside thread body 61, whether 62 swivel nut direction is correct, but when misjudgment, the user often can't learn in screwing tight process, the combination force that causes this fastener 6 to produce does not reach preassigned, causes in this, outside thread body 61, getting loose between 62.
The internal thread body that has has some features in shape, allow the user can distinguish correct swivel nut direction easily, the shade (figure does not show) of the ring butt workpiece that for example stretches out around the end of nut, the feature of this class allow the user very natural energy correctly select the swivel nut direction, but, nut with above-mentioned resemblance, also may make a mistake with the direction of oblique section in this back, so even the user selects correct swivel nut direction with regard to the resemblance of internal thread body, also as having selected wrong direction, when screwing togather, still do not increase the combination force of fastener, the back anisotropy with the oblique section of above-mentioned nut is to occur in the screw thread manufacture process, please be detailed later.
In making the nut process, when the nut profile after punching press forms, the technician can judge in the ensuing tapping operation, which face of this type nut is the most suitable attacks capable tapping towards tooth, after selection finishes, just to cooperate the selected corresponding tooth of tapping direction of nut to attack (two kinds of nut tapping directions, wanting two kinds of corresponding matching to form different backs attacks with the tooth of oblique section direction), after the direction of nut and corresponding tooth are attacked and are selected, nut blanks just can be inserted a vibrating disk makes nut blanks send into defeated material track with correct direction, each embryo product arrives the tapping conduit through defeated material track more in regular turn, allow the tooth of automatic screw machine attack and cut screw thread, inhomogeneous nut blanks all has more suitable tapping direction, so running into different tapping directions just will replace different teeth and attack, owing to more grow permanent teeth to attack and be artificial replacement, human negligence is arranged unavoidably, or the outlet of vibrating disk with the embryo product be directed to opposite towards, also can cause the tapping anisotropy, therefore before tapping, in the manufacture process even in the finished product control process, must attack with hand of spiral at tooth and check, and produce many inspection costs, if the tapping anisotropy just can't use, more cause meaningless waste.
As shown in the above description, though existing fastener has the effect that increases the fastener combination force, on using and making, the back direction with the oblique section on the necessary matching thread makes the user feel inconvenience deeply, and causes the increase of cost of production.
The object of the present invention is to provide between a kind of internal and external screw thread body of fastener can any direction of relative movement swivel nut, increase the effect of fastener combination force, attack with the threaded body of the fastener of dental lamina and be used for making the cutter of this threaded body at the tooth that uses and make convenient fastener threaded body and be used for making threaded body.
Technological scheme of the present invention is: a kind of internal thread body of fastener, this fastener comprises the outside thread body that internal thread body and is used for and the internal thread body is meshed, fastener has an axis of thread, and in above-mentioned, the outside thread body all has a few flanks and crown, the flank of each crown both sides is respectively a leading flank and afterwards with flank, intersect with flank leading flank between two crowns and back becomes a tooth root, above-mentioned leading flank and the back with flank respectively and the angle between the axis of thread be a leading angle and one the back with angle, it is characterized in that: the leading flank of internal thread body forms a leading oblique section and afterwards with the oblique section in the part near tooth root with back respectively with flank, above-mentioned leading, the back with the oblique section respectively and the angle between the axis of thread be a leading oblique angle and one the back with the oblique angle, leading oblique angle is less than the leading angle of correspondence, and should the back with oblique angle back less than correspondence with angle, in being somebody's turn to do, the mutual swivel nut of outside thread body is during to urgent engagement, and the crown of this outside thread body is tight against in leading oblique section or on afterwards with the oblique section.
A kind of tooth of making above-mentioned internal thread body screw thread is attacked, it has a few threads and a tooth is attacked axis, two-phase adjacent teeth abdomen intersects becomes Yi Yafeng, the interventral root of the tooth that becomes of the tooth at two-phase adjacent teeth peak, the angle that above-mentioned tooth abdomen and tooth are attacked axis is a tooth abdomen angle, it is characterized in that: all forming an oblique section at the both sides tooth abdomen that forms each tooth peak near this place, tooth peak, the angle that each oblique section and tooth are attacked between axis is an oblique angle, and each oblique angle is less than pairing tooth abdomen angle.
A kind of outside thread body of fastener, this fastener comprises the internal thread body that this outside thread body and one is used for and this outside thread body is meshed, this fastener has an axis of thread, and in above-mentioned, the outside thread body all has a few flanks and crown, the flank of each crown both sides is respectively a leading flank and afterwards with flank, intersect with flank leading flank between two crowns and back becomes a tooth root, above-mentioned leading flank and back are that a leading angle and a back are with angle with the angle of the axis of thread respectively with flank, it is characterized in that: the leading flank of this outside thread body forms a leading oblique section and afterwards with the oblique section in the part near tooth root with back respectively with flank, above-mentioned leading, the back with the oblique section respectively and the angle between the axis of thread be a leading oblique angle and one the back with the oblique angle, this leading oblique angle is less than the leading angle of correspondence, and should the back with oblique angle back less than correspondence with angle, in being somebody's turn to do, during the mutual urgent engagement of outside thread body, the crown of this internal thread body be tight against leading oblique section or back with the oblique section on.
A kind of dental lamina of making above-mentioned outside thread body screw thread, it has one and is used for rolling over the screw thread setting zone of formulating the above-mentioned outside thread body of shape, this setting zone has several spreading ditches, each spreading ditch has both sides tooth abdomen, two adjacent tooth abdomens intersect becomes Yi Yafeng, the interventral root of the tooth that becomes of the tooth at two-phase adjacent teeth peak, this dental lamina have one and the spreading ditch move towards orthogonal dental lamina axis, the angle of above-mentioned tooth abdomen and dental lamina axis is a tooth abdomen angle, it is characterized in that: all forming an oblique section near this place, tooth peak at the both sides tooth abdomen that forms each tooth peak, angle between each oblique section and dental lamina axis is an oblique angle, and each oblique angle is less than pairing tooth abdomen angle.
Therefore, the threaded body of fastener of the present invention and being used for is made the tooth of this threaded body and is attacked and dental lamina, wherein, and can any direction of relative movement swivel nut between the internal and external screw thread body of fastener, its combination force is significantly increased, and in the use with make also very convenient.
The present invention is described in detail below in conjunction with drawings and Examples:
Fig. 1 is a kind of part sectional view of threaded body of existing fastener.
Fig. 2 is the use schematic representation of a kind of existing fastener and workpiece.
Fig. 3 is the part sectional view of the threaded body of another kind of existing fastener.
Fig. 4 is the portion screw thread sectional view of the fastener of the present invention's first preferred embodiment at Song Taoshi.
Fig. 5 is the part screw thread sectional view of fastener when swivel nut is urgent of the present invention's first preferred embodiment.
Fig. 6 is that the tooth of the present invention's first preferred embodiment is attacked partly sectional view.
Fig. 7 is the part screw thread sectional view of the fastener of the present invention's second preferred embodiment at Song Taoshi.
Fig. 8 is the part screw thread sectional view of fastener when swivel nut is urgent of the present invention's second preferred embodiment.
Fig. 9 is the dental lamina part spreading ditch sectional view of the present invention's second preferred embodiment.
Figure 10 is in the present invention's first preferred embodiment, the amplification view of a kind of tooth root of this internal thread body.
Figure 11 is in the present invention's first preferred embodiment, the amplification view of the another kind of tooth root of this internal thread body.
As shown in Figure 4, the internal thread body 21 and one that first embodiment of the invention comprises a fastener 2 is used for making the tooth of this internal thread body 21 and attacked for 3 (as shown in Figure 6), fastener 2 also comprises one and the outside thread body 22 that is meshed of internal thread body 21, and has an axis of thread 23 at the center, be positioned at the adjacent flank of a crown 211 both sides of internal thread body 21, be respectively a leading interior flank 212 and a back with interior flank 213, intersect with interior flank 213 leading interior flank 212 that two interior crowns are 211 and back becomes tooth roots 214, above-mentioned leading in flank 212 and back with interior flank 213 respectively and the angle between the axis of thread 23 be a leading angle 24 (60 °) and back with angle 25 (60 °), this outside thread body 22 has most circle external crown 221, the flank of each external crown 221 both sides is respectively a leading outer flank 222 and afterwards with outer flank 223, and all leading in, outer flank 212, be parallel to each other between 222, all backs are with interior, outer flank 213, also be parallel to each other between 223, because in this that closes mutually, outside thread body 21,22 have the nargin of screwing togather, it is exactly the tooth root dia of this internal thread body 21, can make in this whereby greater than the crown footpath of this outside thread body 22, outside thread body 21,22 are rotating the state that can be in the pine cover when screwing togather relatively.
In order to reach the object of the invention, flank 212 and back form a leading oblique section 215 and a back with oblique section 216 in the part near tooth root 214 respectively with interior flank 213 in this internal thread body 21 leading, and all leading, backs are with oblique angle 27 (30 °) behind a leading oblique angle 26 (30 °) and one with the angle of 23 of the axis of thread respectively with oblique section 215,216.
As shown in Figure 5, when interior, outside thread body 21,22 are respectively a nut and a bolt, and cooperatively interact in conjunction with two workpieces (figure does not show), when internal thread body 21 with respect to outside thread body 22 swivel nut and when propping up above-mentioned workpiece left, internal thread body 21 can be subjected to workpiece reaction force and with respect to outside thread body 22 displacement to the right, the external crown 221 of this outside thread body 22 can begin to be tight against the back with oblique section 216 on, and along this back with oblique section 216 displacements up to the back with outer flank 223 butts after with interior flank 213, in this section process, the back is more and more littler with oblique section 216 formed internal diameters, it is also increasing thereupon to make the screw thread of outside thread body 22 be compressed urgent degree, therefore along with nut continues locking, the combination force of fastener 2 also continues to increase.
When the user internal thread body 21 is (similar when situation and forward screw togather during with the mutual swivel nut of opposite direction and outside thread body 22, do not illustrate in addition), be inserted in to the relative rotation of bolt with the other end as this nut, also just as this internal thread body 21 among Fig. 5 with respect to outside thread body 22 swivel nut to the right, wait this internal thread body 21 to be subjected to reaction force and to left dislocation, the external crown 221 of outside thread body 22 can begin to be tight against on leading oblique section 215, and along these leading oblique section 215 displacements flank 222 butts outside leading leading in flank 212, it is urgent that outside thread body 22 just is subjected to the compression more and more tightened leading oblique section 215, also can increase the combination force of fastener 2.
Therefore, in in the use of fastener 2, needn't selecting, outside thread body 21, swivel nut direction between 22, because no matter use that a kind of swivel nut direction, the leading oblique section 215 of fastener 2 and back with oblique section 216 one of them all can be by 221 butts of external crown, and the combination force of this fastener 2 is increased, and the problem that on making, does not have the tapping direction, so not needing to possess as existing two kinds cooperates the tooth of tapping direction to attack, also therefore avoided artificial replacement tooth to attack issuable careless mistake of institute or carelessness, and the manpower of minimizing check, time and finished product reject ratio, and can save cost of production.
As shown in Figure 4, leading, back not necessarily identical in design with angle 24,25, above-mentioned leading, back also not necessarily identical in design with oblique angle 26,27, but this leading oblique angle 26 must be less than the leading angle 24 of correspondence, and should the back with oblique angle 27 must be less than correspondence back with angle 25, when so this external crown 221 was resisted against leading oblique section 215 or back with oblique section 216, this outside thread body 22 was just understood by the urgent gradually compression of internal thread body 21.What will illustrate in addition is again, it is a helical teeth root 28 with oblique section 215,216 parts that above-mentioned leading, back begins to form leading, back respectively with interior flank 212,213, and the oblique tooth root dia of this helical teeth root 28 can be less than the crown footpath of outside thread body 22.
As shown in Figure 6, it is the screw threads that are used for making this internal thread body 21 that first embodiment's tooth attacks 3, it has a few tooth abdomens 31 and a tooth is attacked axis 32, two adjacent tooth abdomens 31 intersect becomes a tooth peak 33,31 of the tooth abdomens at two-phase adjacent teeth peak 33 form a root of the tooth 34, each tooth abdomen 31 is all forming an oblique section 311 near 33 places, tooth peak, and the angle that above-mentioned tooth abdomen 31 and tooth are attacked axis 32 is a tooth abdomen angle 35 (60 °), and the angle that each oblique section 311 and tooth are attacked 32 in axis is an oblique angle 36 (30 °).Cooperate shown in Figure 4, this tooth peak 33 can corresponding tapping becomes the tooth root 214 of this internal thread body 21, this tooth abdomen 31 can corresponding tapping become the leading, back with interior flank 212,213 of this internal thread body 21, and this oblique section 311 can corresponding tapping become the leading, back with oblique section 215,216 of this internal thread body 21.
As shown in Figure 7, it is the dental lamina 5 (as shown in Figure 9) that screw thread and that second embodiment of the invention comprises a fastener 4 is used for making this screw thread, this fastener 4 comprises an internal thread body 41 and one and the outside thread body 42 that is meshed of this internal thread body 41, and has an axis of thread 43 at the center, the adjacent flank of one external crown, 421 both sides of this outside thread body 42 is respectively a leading outer flank 422 and afterwards with outer flank 423, intersect with outer flank 423 leading outer flank 422 that this two external crown is 421 and back becomes a tooth root 424, above-mentioned leading outer flank 422 and back with outer flank 423 respectively and the angle between the axis of thread 23 be that a leading angle 44 (60 °) and is afterwards with angle 45 (60 °), 41 of this internal thread bodies have crown 411 in most circles, the flank of crown 411 both sides is respectively a leading interior flank 412 and afterwards with interior flank 413 in each, and above-mentioned leading in, outer flank 412, be parallel to each other between 422, above-mentioned back is with interior, outer flank 413, also be parallel to each other between 423.Because 41,42 of this internal and external screw thread bodies that close mutually have the nargin of screwing togather, and are exactly the tooth root dia of this outside thread body 42, can make this internal and external screw thread body 41,42 when relative rotation screws togather, can be in the state of pine cover whereby less than the crown footpath of this internal thread body 41.
In order to realize the object of the invention, the leading outer flank 422 of this outside thread body 42 and back form a leading oblique section 425 and a back with oblique section 426 in the part near tooth root 424 respectively with outer flank 423, and above-mentioned leading, back is with oblique angle 47 (30 °) behind a leading oblique angle 46 (30 °) and one with the angle of 43 of the axis of thread respectively with oblique section 425,426.
As shown in Figure 8, in this, outside thread body 41,42 are respectively a nut and a bolt, and cooperatively interact in conjunction with two workpieces (figure does not show), when this internal thread body 41 with respect to outside thread body 42 swivel nut and when propping up above-mentioned workpiece left, this internal thread body 41 can be subjected to workpiece reaction force and with respect to outside thread body 42 displacement to the right, the interior crown 411 of this internal thread body 41 can begin to be tight against the back with oblique section 426 on, and along this back with oblique section 426 displacements up to the back with interior flank 413 butts after with outer flank 423, in this section process, this back is increasing with oblique section 426 formed external diameters, it is also increasing thereupon to make the screw thread of this internal thread body 41 be subjected to expanding the degree of support, therefore along with nut continues locking, the combination force of this fastener 4 also continues to increase.
(it is similar when screwing togather to screw togather situation and forward with this internal thread body 41 during with the mutual swivel nut of opposite direction and outside thread body 42 as the user, do not illustrate in addition), as above-mentioned nut with the other end to bolt and relatively rotation be inserted in, also just as this internal thread body 41 among Fig. 8 with respect to outside thread body 42 swivel nut to the right, wait this internal thread body 41 to be subjected to reaction force and to left dislocation, the interior crown 411 of this internal thread body 41 can begin to be tight against on 425 of leading bevels, and along these leading oblique section 425 displacements flank 412 butts in leading leading outside flank 422, it is urgent that this outside thread body 42 is subjected to the compression more and more tightened leading oblique section 425 too, and continue to increase the combination force of this fastener 4.
Therefore, no matter the relative swivel nut direction between this internal and external screw thread body 41,42 why, when the mutual swivel nut of this internal and external screw thread body 41,42, the combination force of fastener 4 is increased, so needn't judge earlier in the use whether the swivel nut direction in this, between the threaded body 41,42 is correct, the puzzlement of the standard that can't reach because of the swivel nut anisotropy as the combination force of existing fastener can not take place yet again, second embodiment's fastener 4 threaded bodies and first embodiment have manpower, time and the finished product reject ratio that reduces check equally, also can reach the effect of saving cost of production.
As shown in Figure 7, this is leading, the back is not necessarily identical in design with angle 44,45, above-mentioned leading, back also not necessarily identical in design with oblique angle 46,47, but this leading oblique angle 46 must be less than corresponding leading angle 44, and this back must be less than the back with angle 45 of correspondence with oblique angle 47, so should in crown 411 when being resisted against leading oblique section 425 or back with oblique section 426, this internal thread body 41 just meeting be expanded support gradually by outside thread body 42.What will illustrate in addition is again, it is a helical teeth root 48 with oblique section 425,426 parts that above-mentioned leading, back begins to form leading, back respectively with outer flank 422,423, and the oblique tooth root dia of each helical teeth root 48 can be greater than the crown footpath of internal thread body 21.
As shown in Figure 9, second embodiment's dental lamina 5 is the screw threads that are used for making this outside thread body 42, it has one and is used for rolling over the screw thread setting zone of formulating the above-mentioned outside thread body 42 of shape, this setting zone has most bar spreading ditches 52, each spreading ditch 52 has both sides tooth abdomen 521, two adjacent tooth abdomens 521 intersect becomes a tooth peak 522,521 of the tooth abdomens at two-phase adjacent teeth peak 522 form a root of the tooth 523, above-mentioned tooth abdomen 521 is all forming an oblique section 524 near 522 places, tooth peak, this dental lamina 5 have one and spreading ditch 52 move towards orthogonal dental lamina axis 53, the angle of each tooth abdomen 521 and dental lamina axis 53 is a tooth abdomen angle 54 (60 °), and the angle between each oblique section 524 and the dental lamina axis 53 is an oblique angle 55 (30 °).Cooperate shown in Figure 7, above-mentioned tooth peak 522 can corresponding be rolled into the tooth root 424 of this outside thread body 42, above-mentioned tooth abdomen 521 can corresponding be rolled into the leading, back with outer flank 422,423 of this outside thread body 42, and above-mentioned oblique section 524 can corresponding be rolled into the leading, back with oblique section 425,426 of this outside thread body 42.
First and second embodiment's internal and external screw thread body is on practice, except being respectively nut, bolt, the engagement that also can be screw and screw waits other to have the intermeshing composite set of internal and external screw thread, and these other composite set, its start principle is with identical at nut, bolt, so no longer be described in detail at this.Shown in Figure 10,11, what be worth explanation in detail is, in first embodiment, it is linear that the shape of the tooth root 214 of this internal thread body 21 can be that circular arc also can be straight horizontal, in addition, tooth root 424 shapes of second embodiment's outside thread body 42 also can be circular arc or lineal shape (figure does not show).
Claims (4)
1, a kind of internal thread body of fastener, this fastener comprises the outside thread body that internal thread body and is used for and the internal thread body is meshed, fastener has an axis of thread, and in above-mentioned, the outside thread body all has a few flanks and crown, the flank of each crown both sides is respectively a leading flank and afterwards with flank, intersect with flank leading flank between two crowns and back becomes a tooth root, above-mentioned leading flank and the back with flank respectively and the angle between the axis of thread be a leading angle and one the back with angle, it is characterized in that: the leading flank of internal thread body forms a leading oblique section and afterwards with the oblique section in the part near tooth root with back respectively with flank, above-mentioned leading, the back with the oblique section respectively and the angle between the axis of thread be a leading oblique angle and one the back with the oblique angle, leading oblique angle is less than the leading angle of correspondence, and should the back with oblique angle back less than correspondence with angle, in being somebody's turn to do, the mutual swivel nut of outside thread body is during to urgent engagement, and the crown of this outside thread body is tight against in leading oblique section or on afterwards with the oblique section.
2, a kind of tooth of making the described internal thread body of claim 1 screw thread is attacked, it has a few threads and a tooth is attacked axis, two-phase adjacent teeth abdomen intersects becomes Yi Yafeng, the interventral root of the tooth that becomes of the tooth at two-phase adjacent teeth peak, the angle that above-mentioned tooth abdomen and tooth are attacked axis is a tooth abdomen angle, it is characterized in that: all forming an oblique section at the both sides tooth abdomen that forms each tooth peak near this place, tooth peak, the angle that each oblique section and tooth are attacked between axis is an oblique angle, and each oblique angle is less than pairing tooth abdomen angle.
3, a kind of outside thread body of fastener, this fastener comprises the internal thread body that this outside thread body and one is used for and this outside thread body is meshed, this fastener has an axis of thread, and in above-mentioned, the outside thread body all has a few flanks and crown, the flank of each crown both sides is respectively a leading flank and afterwards with flank, intersect with flank leading flank between two crowns and back becomes a tooth root, above-mentioned leading flank and back are that a leading angle and a back are with angle with the angle of the axis of thread respectively with flank, it is characterized in that: the leading flank of this outside thread body forms a leading oblique section and afterwards with the oblique section in the part near tooth root with back respectively with flank, above-mentioned leading, the back with the oblique section respectively and the angle between the axis of thread be a leading oblique angle and one the back with the oblique angle, this leading oblique angle is less than the leading angle of correspondence, and should the back with oblique angle back less than correspondence with angle, in being somebody's turn to do, during the mutual urgent engagement of outside thread body, the crown of this internal thread body be tight against leading oblique section or back with the oblique section on.
4, a kind of dental lamina of making the described outside thread body of claim 3 screw thread, it has one and is used for rolling over the screw thread setting zone of formulating the above-mentioned outside thread body of shape, this setting zone has several spreading ditches, each spreading ditch has both sides tooth abdomen, two adjacent tooth abdomens intersect becomes Yi Yafeng, the interventral root of the tooth that becomes of the tooth at two-phase adjacent teeth peak, this dental lamina have one and the spreading ditch move towards orthogonal dental lamina axis, the angle of above-mentioned tooth abdomen and dental lamina axis is a tooth abdomen angle, it is characterized in that: all forming an oblique section near this place, tooth peak at the both sides tooth abdomen that forms each tooth peak, angle between each oblique section and dental lamina axis is an oblique angle, and each oblique angle is less than pairing tooth abdomen angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99123301A CN1101897C (en) | 1999-10-18 | 1999-10-18 | Spiral thread unit of fastener and its threading head and spanner for manufacturing the unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99123301A CN1101897C (en) | 1999-10-18 | 1999-10-18 | Spiral thread unit of fastener and its threading head and spanner for manufacturing the unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1293318A CN1293318A (en) | 2001-05-02 |
| CN1101897C true CN1101897C (en) | 2003-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99123301A Expired - Fee Related CN1101897C (en) | 1999-10-18 | 1999-10-18 | Spiral thread unit of fastener and its threading head and spanner for manufacturing the unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101897C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106541250B (en) * | 2015-09-18 | 2018-09-28 | 精准紧固件有限公司 | Anti-loose bolt manufacturing method and its bolt element is made |
| CN105317807B (en) * | 2015-11-27 | 2016-08-17 | 宁波敏达机电有限公司 | Band taper thread bolt and processing dental lamina thereof |
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| US4191486A (en) * | 1978-09-06 | 1980-03-04 | Union Carbide Corporation | Threaded connections |
| US4846614A (en) * | 1986-12-08 | 1989-07-11 | Rolf Steinbock | Differential thread for transfer of screw thread forces |
| US4850775A (en) * | 1988-04-26 | 1989-07-25 | Lee Jae B | Screw-type fastening device |
| US5624219A (en) * | 1994-12-29 | 1997-04-29 | Hamanaka Nut Manufacturing Co., Ltd. | High-strength bolt and high-strength nut |
| JPH10176709A (en) * | 1997-12-05 | 1998-06-30 | Yamashina Seikosho:Kk | Screw |
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1999
- 1999-10-18 CN CN99123301A patent/CN1101897C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191486A (en) * | 1978-09-06 | 1980-03-04 | Union Carbide Corporation | Threaded connections |
| US4846614A (en) * | 1986-12-08 | 1989-07-11 | Rolf Steinbock | Differential thread for transfer of screw thread forces |
| US4850775A (en) * | 1988-04-26 | 1989-07-25 | Lee Jae B | Screw-type fastening device |
| US5624219A (en) * | 1994-12-29 | 1997-04-29 | Hamanaka Nut Manufacturing Co., Ltd. | High-strength bolt and high-strength nut |
| JPH10176709A (en) * | 1997-12-05 | 1998-06-30 | Yamashina Seikosho:Kk | Screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1293318A (en) | 2001-05-02 |
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