CN206647402U - Have inner thread piece and forming internal threads instrument - Google Patents
Have inner thread piece and forming internal threads instrument Download PDFInfo
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- CN206647402U CN206647402U CN201621469978.3U CN201621469978U CN206647402U CN 206647402 U CN206647402 U CN 206647402U CN 201621469978 U CN201621469978 U CN 201621469978U CN 206647402 U CN206647402 U CN 206647402U
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Abstract
A kind of tool inner thread piece and forming internal threads instrument are the utility model is related to, to solve to have at present the problems such as inner thread piece is with easily releasing because of vibrations after tool external thread piece locking or producing leak fluid.The wherein at least one internal thread of tool inner thread piece of the present utility model is different from the pitch diameter of other internal threads, the tool inner thread piece is fastened clip by the external screw thread of wherein at least one internal thread and tool external thread piece, make the tool inner thread piece being screwed be not easy to release and there is leak preventing effect with tool external thread piece.
Description
Technical field
A kind of lock member and the instrument to the machine-shaping lock member are the utility model is related to, especially a kind of tool
Inner thread piece and forming internal threads instrument, to be molded the internal thread of the tool inner thread piece by the forming internal threads tool processes.
Background technology
Common tool inner thread piece includes nut and interior tooth pipe joint (such as straight-through, bend pipe or tee pipe coupling), with spiral shell
Exemplified by cap, Fig. 1 is refer to, it is a kind of existing nut 91 and screw 92, and the inner peripheral surface of the nut 91 has phase in the shape of a spiral
Several internal threads 911 even, and the respectively Luo Gu (i.e. tooth bottom) to the central shaft S1 of the nut 91 of the internal thread 911 distance phase
Deng；Similarly, the outer peripheral face of the screw 92 has the Luo Feng of connected in the shape of a spiral several external screw threads 921, the respectively external screw thread 921
(i.e. crest) to the central shaft S2 of the screw 92 distance are equal, and respectively the tooth form of the external screw thread 921 and pitch are also identical.According to
This, when the existing nut 91 is screwed with screw 92, the central shaft S1 of the nut 91 is coaxial with the central shaft S2 of the screw 92,
Several internal threads 911 of the wherein several external screw threads 921 and the nut 91 of the screw 92 are screwed.
However, due to when the external screw thread 921 of the screw 92 and the internal thread 911 of the nut 91 are screwed, in the external screw thread
Between 921 Luo Feng and the spiral shell paddy of the internal thread 911, and the internal thread 911 Luo Feng and the external screw thread 921 spiral shell paddy it
Between, identical minim gap can be all formed, therefore the existing nut 91 easily gradually releases after locking with screw 92 because of vibrations.
Therefore, the current practice is all with after screw 92, additionally using instrument cramping should in the existing nut 91 that locks
Nut 91, the nut 91 is produced deformation slightly, to reduce the gap of the nut 91 and the screw 92, and then delay the nut
91 situations about gradually being released by vibrations with the screw 92, but often through being still to inspect and improve releasing for the two again for a period of time
Situation, cause all to be difficult to reduce manpower and time cost needed for safeguarding for a long time；And once it is negligent of safeguarding, it is also possible to because of spiral shell
Cap 91 releases with screw 92 and unnecessary accident occurs, therefore has improvedd necessity in fact.
Analogously, foregoing minim gap is also had when interior tooth pipe joint and the tool external thread piece of corresponding specification screw togather,
Thus need to wind such as leakproof adhesive plaster and other items, just can determine that both is closely sealed with liquid-leakage preventing, therefore construction procedure is relatively complicated, into
This is also higher.And, the article of leakproof adhesive plaster etc can also go bad aging with usage time again, so that leak preventing effect is gradually deteriorated,
Periodic maintenance is needed to arrange for, therefore the cost such as manpower, time and running stores needed for safeguarding is difficult to reduce.
Utility model content
To solve the above problems, the utility model provides a kind of tool inner thread piece, inner circumferential surface is provided with several internal threads, should
Clip can be fastened by the external screw thread of wherein at least one internal thread and tool external thread piece by having inner thread piece so that the tool being screwed
Inner thread piece is not easy to release or can reach good leak preventing effect with tool external thread piece.
The utility model separately provides a kind of forming internal threads instrument, to the interior spiral shell of the foregoing tool inner thread piece of machine-shaping
Line, obtained tool inner thread piece is set to be not easy to release after being screwed with tool external thread piece or can reach good leak preventing effect.
Tool inner thread piece of the present utility model has a central shaft, on the direction of the central shaft is orthogonal to, in one
Screw thread is defined as in " big footpath " from maximum distance the utility model between the opposite sides of the central shaft；One internal thread is from this
Minimum distance the utility model between the opposite sides of mandrel is defined as " path "；The utility model separately defines an internal thread
Big footpath and the average value of path be " pitch diameter (Pitch Diameter) ".
Tool inner thread piece of the present utility model, inner circumferential surface are provided with several connected internal threads in the shape of a spiral；Wherein at least
One female thread advises screw thread into spy, and the pitch diameter that the spy advises screw thread is different from the pitch diameter of other internal threads.
Accordingly, tool inner thread piece of the present utility model can be advised screw thread with having the external screw thread fastener of external thread piece by the spy
Tug so that the tool inner thread piece being screwed is not easy to release with tool external thread piece, therefore when the tool inner thread piece is nut, installation should
The nut need not be clamped after nut and again to deformation；When the tool inner thread piece is interior tooth pipe joint, the interior tooth pipe is installed and connect
Head can need not reuse leakproof adhesive plaster and other items such as and can ensure that leak preventing effect is good, therefore tool internal thread of the present utility model
Part can lift assembling convenience and efficiency.And, due to tool inner thread piece of the present utility model and has energy after external thread piece screws togather again
Maintain contiguity and be not easy to release, therefore inspecting and improve the two frequency for releasing situation again can reduce, and help reduction and safeguard institute
The manpower and time cost needed, solve the problems, such as long-term existence and be difficult to improve.
Wherein, it may be selected to make the big footpath of the respectively internal thread equal, the path that the spy advises screw thread is less than the small of other internal threads
Footpath；The simple structure and be easy to be manufactured, and can ensure that the utility model tool inner thread piece can with have external thread piece fastener
Tug.
Wherein, the Luo Fengchu that the spy advises screw thread has a protuberance, and the protuberance protrudes to form spy rule screw thread
At least one surface of Luo Feng both sides, allow the spy advise screw thread protuberance by the external screw thread crimp of tool external thread piece very
To destruction, tight ness rating is screwed togather with lift the tool inner thread piece and the tool external thread piece.
Or also may be selected to make the path of the respectively internal thread equal, and the big footpath that the spy advises screw thread is less than other internal threads
Big footpath；The simple structure and be easy to be manufactured, and can ensure that the utility model tool inner thread piece can with tool external thread piece it is tight
Gu clip.
Wherein, the Luo Guchu that the spy advises screw thread has a recess, and the recess is depressed in form spy rule screw thread
At least one surface of Luo Gu both sides, the externally threaded Luo Feng for making contraposition be advised in the spy at screw thread can be advised screw thread by the spy and be squeezed
Compressive strain even destroys, and to insert in the recess that the spy advises screw thread, reaches the tool inner thread piece and is screwed togather with the tool external thread piece
The effect of tight ness rating.
Wherein, the tool inner thread piece has a central shaft, several internal threads centered on the central shaft in the shape of a spiral
It is connected, the spy advises screw thread and is located at the one end of the tool inner thread piece on the central axis direction, and operation when being screwed togather to be lifted is just
Profit.
Also, forming internal threads instrument of the present utility model, including：One handle of a knife, the handle of a knife have a central shaft；And one
Individual cutter head, the cutter head is coaxially connected to be provided with several cutting edges, wherein at least one in one end of the handle of a knife, the circumferential surface of the cutter head
Cutting edge forms special rule sword, and on the direction of the central shaft is orthogonal to, respectively the maximum diameter of the cutting edge is wide equal, and the spy advises sword
The wide most path less than other cutting edges of most path it is wide.
Or another forming internal threads instrument of the present utility model, including：One handle of a knife, the handle of a knife have in one
Mandrel；And a cutter head, the cutter head is coaxially connected to be provided with several cutting edges in one end of the handle of a knife, the circumferential surface of the cutter head, its
In at least one cutting edge form special rule sword, on the direction of the central shaft is orthogonal to, respectively the most path of the cutting edge is wide equal,
And the wide maximum diameter less than other cutting edges of maximum diameter that the spy advises sword is wide.
Accordingly, forming internal threads instrument of the present utility model can be used to the internal thread of the foregoing tool inner thread piece of machine-shaping,
And the forming internal threads instrument simple structure in itself and be easy to manufacture, having reduces the technique effects such as manufacturing cost.
Wherein, several cutting edges are equally arranged at the circumferential surface of the cutter head, and several cutting edges are not helically
Shape is connected；Or several cutting edges are conjointly located at the circumferential surface of the cutter head in the shape of a spiral.Accordingly, it is of the present utility model
Forming internal threads instrument can be molded the internal thread of foregoing tool inner thread piece by different processing modes.
Wherein, the spy advises sword and is provided with a recess towards central shaft depression in the closest central axis, makes processing
Protuberance corresponding to being formed at the Luo Feng of the special rule screw thread of the tool inner thread piece of shaping.
Wherein, the spy advises sword and is being provided with a protuberance farthest away from the central axis, makes the tool inner thread piece of machine-shaping
Special rule screw thread Luo Gu at can be formed corresponding to recess.
Wherein, respectively the cutting edge has two inclined-planes and an external end edge farthest away from the central shaft, and the protuberance is preferable
At least one inclined-plane that the spy advises sword is protruded from, the special protuberance for advising screw thread for having inner thread piece for alloing to mold is outer by tool
The external screw thread crimp of screw element is even destroyed, and tight ness rating is screwed togather with lift the tool inner thread piece and the tool external thread piece.
Wherein, the spy advises sword on the cutter head further away from one end of the handle of a knife, makes the tool inner thread piece and tool molded
Operation ease when external thread piece screws togather is preferable.
Brief description of the drawings
Fig. 1：A kind of existing nut cuts open structural representation with the side that screw is screwed.
Fig. 2：The utility model first embodiment has the broken section dimensional structure diagram of inner thread piece.
Fig. 3：Cut open structural representation in the side of the utility model first embodiment tool inner thread piece.
Fig. 4：The utility model first embodiment has inner thread piece and cuts open structural representation with having the side that external thread piece is screwed.
Fig. 5：Fig. 4 partial enlargement structural representation.
Fig. 6：The dimensional structure diagram of the utility model first embodiment forming internal threads instrument.
Fig. 7：Cut open structural representation in the side of the utility model first embodiment forming internal threads instrument.
Fig. 8：Shown with the implementation of the utility model first embodiment forming internal threads tool processes tool inner thread piece inner peripheral surface
It is intended to.
Fig. 9：The dimensional structure diagram of the utility model first embodiment another kind forming internal threads instrument.
Figure 10：Cut open structural representation in the side of the utility model first embodiment another kind forming internal threads instrument.
Figure 11：With the utility model first embodiment another kind forming internal threads tool processes tool inner thread piece inner peripheral surface
Implement schematic diagram.
Figure 12：The partial side of the utility model second embodiment tool inner thread piece cuts open structural representation.
Figure 13：The utility model second embodiment has inner thread piece and cuts open structural representation with having the side that external thread piece is screwed
Figure.
Figure 14：Figure 13 partial enlargement structural representation.
Figure 15：Cut open structural representation in the side of the utility model second embodiment forming internal threads instrument.
Figure 16：Cut open structural representation in side when the utility model tool inner thread piece forms taper internal thread.
【Description of reference numerals】
This Shi of ﹝ Xin Xing ﹞
The 1 tool internal thread of inner thread piece 11
12 protuberances
2 forming internal threads instrument 2a handle of a knifes
The cutting edge of 2b cutter heads 21
The external end edge of 211 inclined-plane 212
The recess of 22 chip area 23
3 forming internal threads instrument 3a handle of a knifes
The cutting edge of 3b cutter heads 31
The external end edge of 311 inclined-plane 312
The recess of 32 chip area 33
4th, 4 ' tool inner thread pieces 41,41 ' internal threads
42nd, 42 ' recess
5 forming internal threads instrument 5a handle of a knifes
The cutting edge of 5b cutter heads 51
The external end edge of 511 inclined-plane 512
52 protuberances
6 forming internal threads instrument 6a handle of a knifes
The cutting edge of 6b cutter heads 61
The external end edge of 611 inclined-plane 612
62 protuberances
The 7 tool external screw threads of external thread piece 71
The 8 tool external screw threads of external thread piece 81
A1, A2, A3, A4, A5, A6, A7 central shaft
The special rule swords of B
D1, D2, D2 ', D3, D4, D4 ' distance
P, P ' pitch diameters
The special rule screw threads of S
W1, W3, W6, W6 ' maximum diameter is wide
W2, W2 ', W4, W4 ', W5 most paths are wide
θ, α angle
﹝ Xian You Ji Shu ﹞
The internal thread of 91 nut 911
The external screw thread of 92 screw 921
S1, S2 central shaft.
Embodiment
It is below in conjunction with the accompanying drawings, right by embodiment in order to understand in order to preferably explain the utility model
The utility model is described in detail.
For above-mentioned and other objects, features and advantages of the present utility model can be become apparent, cited below particularly practicality
New preferred embodiment, and coordinate accompanying drawing, it is described in detail below：
Fig. 2, Fig. 3 are refer to, it is the first embodiment of the utility model tool inner thread piece 1, in the present embodiment, the tool
Inner thread piece 1 is presented with nut kenel, but is not limited.The tool inner thread piece 1 has a central shaft A1, the tool inner thread piece
1 inner peripheral surface is provided with several internal threads 11, and several internal threads 11 are connected in the shape of a spiral centered on central shaft A1.In the tool
The inner peripheral surface of screw element 1 can be in generally isometrical straight-tube shape or expanding taper kenel at the position provided with several internal threads 11；
The present embodiment first illustrates by taking isometrical straight-tube shape as an example, and expanding taper is then detailed later.
A wherein at least internal thread 11 for the tool inner thread piece 1 forms special rule screw thread S, spy advise screw thread S pitch diameter P ' and
The pitch diameter P of other internal threads 11 is different.The present embodiment selection makes the big footpath of the respectively internal thread 11 equal, and the spy advises screw thread S's
Path is less than the path of other internal threads 11, so that the spy advises screw thread S pitch diameter Ps of the pitch diameter P ' different from other internal threads 11.
Specifically, the present embodiment can make the angle of rifling (thread angle) of the respectively internal thread 11 equal, and it is being orthogonal to
On central shaft A1 direction, each opposite sides (the respectively Luo Gu of the internal thread 11 of the internal thread 11 farthest away from central shaft A1
Place) the distance between D1 it is equal；That is, respectively the big footpath of the internal thread 11 is equal.In addition, the Luo Fengchu that the spy advises screw thread S is convex with one
Go out portion 12, at least a surface, the preferred symmetrical that the protuberance 12 protrudes from the Luo Feng both sides to form spy rule screw thread S protrude from shape
The upper surface and lower surface of screw thread S Luo Feng both sides are advised into the spy；And on central shaft A1 direction is orthogonal to, the spy advises spiral shell
The distance between the closest central shaft A1 of line S opposite sides (protuberance 12) D2 ' is less than the most adjacent of other internal threads 11
The distance between nearly central shaft A1 opposite sides (Luo Fengchu of other internal threads 11) D2；That is, the spy advises screw thread S path
Less than the path of other internal threads 11.Wherein, the spy advises screw thread S preferably located at the tool inner thread piece 1 in central shaft A1 directions
On one end.
Refer to Fig. 3, Fig. 4, Fig. 5, according to by aforementioned structure, the utility model tool inner thread piece 1 respectively the internal thread 11 can
It is screwed respectively with corresponding several external screw threads 71 on an existing tool external thread piece 7, and during locking, as long as using gas
Motivation tool or other throws are forced to rotate the tool inner thread piece 1 or tool external thread piece 7, you can make several external screw threads therein
71 advise screw thread S by the spy.Accordingly, the tool inner thread piece 1 being screwed and tool external thread piece 7, can be advised by contraposition in the spy
The crimp of external screw thread 71 at screw thread S even destroys the protuberance 12 that spy advises screw thread S, with fill up spy rule screw thread S with it is right
The gap between external screw thread 71 is answered, so that the external screw thread 71 and spy advise screw thread S into fastening clip, therefore even if the tool internal thread
Small gap is still left between other internal threads 11 of part 1 and the external screw thread 71 of the tool external thread piece 7, still can ensure that in the tool
Screw element 1 is close with the tool external thread piece 7 and firmly screws togather.
Therefore, when the tool inner thread piece 1 being screwed and tool external thread piece 7 be given a shock so that the tool inner thread piece 1 be intended to by
When voluntarily pine turns on the tool external thread piece 7, due to the special rule screw thread S and the tool external thread piece 7 of the tool inner thread piece 1 external screw thread
71 closely screw togather so that the tool inner thread piece 1 is not easy to form pine because of vibrations relative to the tool external thread piece 7 and turn, i.e., in the tool
Screw element 1 can make the tool internal thread being screwed because being advised screw thread S block by the external screw thread 71 of mutual fastening clip and the spy
Part 1 is not easy to release because of vibrations with tool external thread piece 7.Consequently, it is possible to after tool inner thread piece 1 of the present utility model is installed and it is not required to
The tool inner thread piece 1 is clamped again to deformation, can lift assembling convenience and efficiency.And tool inner thread piece 1 of the present utility model
After being screwed togather with tool external thread piece 7, due to being not easy to release because of vibrations, therefore the two frequency for releasing situation is inspected and improved again and is incited somebody to action
It can reduce, helping reduces manpower and time cost needed for safeguarding.
Particularly, it is several when the spy of the tool inner thread piece 1 advises screw thread S quantity, and several special rule screw thread S are in the shape of a spiral
When being connected, the effect that the tool external thread piece 7 releases is prevented to be substantially improved so that the tool inner thread piece 1 being screwed is outer with tool
Screw element 7 hardly releases because of vibrations.Wherein, spy rule screw thread S quantity should be regarding spy rule screw thread S pitch diameter P ' and its
Depending on the pitch diameter P of his internal thread 11 difference, when two pitch diameter P ', P difference are larger, the quantity that the spy advises screw thread S should be reduced, such as can
Think two；When two pitch diameter P ', P differences are smaller, the quantity that the spy advises screw thread S can increase, such as can be four, five, such as
This can be avoided the tool external thread piece 7 with having operating difficulties degree when inner thread piece 1 screws togather.
In addition, refer to Fig. 6, Fig. 7, the utility model separately discloses a kind of forming internal threads instrument 2, before machine-shaping
State several internal threads 11 of the tool inner thread piece 1 of first embodiment；The forming internal threads instrument 2 generally include a handle of a knife 2a and
One cutter head 2b, cutter head 2b are connected to handle of a knife 2a one end.
There is the handle of a knife 2a central shaft A2, handle of a knife 2a to be available for folder tug in the rotary machining tool machine such as lathe or milling machine
On chuck, the cutter head 2b of the forming internal threads instrument 2 is aligned exactly with workpiece, and screw cutting is carried out to workpiece and added
Work industry.
Cutter head 2b is coaxially connected in handle of a knife 2a one end, to be driven and synchronous rotary by handle of a knife 2a.Cutter head 2b
Circumferential surface be convexly equipped with several cutting edges 21 of spaced set, i.e. several cutting edges 21 are respectively on cutter head 2b circumferential surfaces
A bulge loop, several cutting edges 21 are not connected in the shape of a spiral.Cutter head 2b is additionally provided with an at least chip area 22, the chip removal
Groove 22 extends from cutter head 2b free end face by several cutting edges 21 and to handle of a knife 2a, produced when making cutting workpiece
Crumble can by the chip area 22 and exclude, so as to maintain machining smoothness.
Respectively the cutting edge 21 includes two inclined-planes 211, an angle theta, and the respectively cutting edge being formed between two inclined-planes 211
21 angle theta is preferably equal.Respectively the cutting edge 21 has the external end edge 212 farthest away from central shaft A2.Wherein at least all
Cut sword 21 and form special rule sword B, on central shaft A2 direction is orthogonal to, respectively the wide W1 of the maximum diameter of the cutting edge 21 is equal, and
The spy advises sword B most path wide W2s of the wide W2 ' of most path less than other cutting edges 21；It is somebody's turn to do for example, making the spy advise sword B closest
The recess 23 towards central shaft A2 depressions is provided with central shaft A2.Wherein, the spy advise sword B preferably on cutter head 2b compared with
One end away from handle of a knife 2a.
Fig. 3, Fig. 8 are refer to, can be used to treat one according to by aforementioned structure, forming internal threads instrument 2 of the present utility model
Cut internal thread tool inner thread piece 1 inner peripheral surface processing, with the internal thread to be cut tool inner thread piece 1 inner peripheral surface into
Type goes out foregoing several internal threads 11.Specifically, the forming internal threads instrument 2 can be placed into spiral shell in the tool of the internal thread to be cut
In the space that the inner peripheral surface institute corral of line part 1 goes out, by the forming internal threads instrument 2 that rotates at a high speed with its cutter head 2b special rule sword B and
The external end edge 212 of several cutting edges 21 contacts the inner peripheral surface of the tool inner thread piece 1 of the internal thread to be cut, and controls this to be cut
The tool inner thread piece 1 of internal thread slowly rotates a circle, and in a period of the tool inner thread piece 1 rotates a circle, controls the interior spiral shell
Line shaping jig 2 is relative to the pitch (pitch) of 1 axial displacement of tool inner thread piece one；In this way, can be in the tool inner thread piece 1
Inner peripheral surface cut foregoing several internal threads 11 connected in the shape of a spiral and special rule screw thread S.
Also, refer to Fig. 9, the utility model discloses another forming internal threads instrument 3 again, the forming internal threads instrument 3
Existing tap instrument is can be similar to, it equally can be used to the number of the tool inner thread piece 1 of machine-shaping aforementioned first embodiment
Individual internal thread 11；The forming internal threads instrument 3 generally includes an a handle of a knife 3a and cutter head 3b, and cutter head 3b is connected to the handle of a knife
3a one end.
Fig. 9, Figure 10 are refer to, there is the handle of a knife 3a central shaft A3, handle of a knife 3a to be available for folder tug in lathe or milling machine etc.
On the chuck of rotary machining tool machine, the cutter head 3b of the forming internal threads instrument 3 is set to be aligned exactly with workpiece, and to workpiece
Carry out the processing operation of screw cutting.
Cutter head 3b is coaxially connected in handle of a knife 3a one end, to be driven and synchronous rotary by handle of a knife 3a.Cutter head 3b
Circumferential surface be convexly equipped with the shape of a spiral connected several cutting edges 31, cutter head 3b is additionally provided with an at least chip area 32 to arrange
Bits.Wherein, cutter head 3b free end is in undergauge shape, to lift the smoothness of drilling hole.
Respectively the cutting edge 31 includes two inclined-planes 311, an angle α, and the respectively cutting edge being formed between two inclined-planes 311
31 angle α is preferably equal.Respectively the cutting edge 31 have farthest away from central shaft A3 an external end edge 312, wherein at least all
Cut sword 31 and form special rule sword B, on central shaft A3 direction is orthogonal to, respectively the wide W3 of the maximum diameter of the cutting edge 31 is equal, and
The spy advises sword B most path wide W4s of the wide W4 ' of most path less than other cutting edges 31；It is somebody's turn to do for example, making the spy advise sword B closest
The recess 33 towards central shaft A3 depressions is provided with central shaft A3；The spy advise sword B preferably on cutter head 3b further away from
Handle of a knife 3a one end.
Fig. 9, Figure 11 are refer to, can be used to treat one according to by aforementioned structure, forming internal threads instrument 3 of the present utility model
Cut internal thread tool inner thread piece 1 inner peripheral surface processing, with the internal thread to be cut tool inner thread piece 1 inner peripheral surface into
Type goes out foregoing several internal threads 11.Specifically, the forming internal threads instrument 3 of rotation can freely terminating by its cutter head 3b at a high speed
The top surface of the tool inner thread piece 1 of the internal thread to be cut and internally tapping are touched, by its cutter head 3b special rule sword B and several cuttings
The inner peripheral surface of inner thread piece 1 is provided in the drilling of external end edge 312 of sword 31, while is cut and foregoing be connected in the shape of a spiral in the inner peripheral surface
Several internal threads 11 and special rule screw thread S.
Refer to Figure 12, its be the utility model tool inner thread piece 4 second embodiment, the utility model second embodiment
It is with the Main Differences of above-mentioned first embodiment：The selection of tool inner thread piece 4 of the utility model second embodiment makes respectively should
The path of internal thread 41 is equal, and the spy advises screw thread S big footpath of the big footpath less than other internal threads 41, so that the spy advises screw thread S
Pitch diameter P ' be different from other internal threads 41 pitch diameter P.In addition, the present embodiment by the tool inner thread piece 4 with interior tooth tube adaptor type
State is presented, but is not limited.
Specifically, the present embodiment can make the angle of rifling (thread angle) of the respectively internal thread 41 equal, and it is being orthogonal to
On central shaft A4 direction, each closest central shaft A4 of the internal thread 41 opposite sides (the respectively Luo Fengchu of the internal thread 41)
The distance between D3 it is equal；That is, respectively the path of the internal thread 41 is equal.In addition, the Luo Guchu that the spy advises screw thread S has a recess
42, at least a surface, the preferred symmetrical that the recess 42 is depressed in the Luo Gu both sides to form spy rule screw thread S protrude to form this
The upper surface and lower surface of spy's rule screw thread S Luo Gu both sides；On central shaft A4 direction is orthogonal to, the spy advises screw thread S most
The distance between opposite sides (recess 42) away from central shaft A4 D4 ' be less than other internal threads 41 farthest away from this
The distance between mandrel A4 opposite sides (Luo Guchu of other internal threads 41) D4；That is, the big footpath of spy rule screw thread S is less than it
The big footpath of his internal thread 11.Wherein, the spy advises screw thread S and is preferably located at one of the tool inner thread piece 1 on central shaft A4 directions
End.
Figure 13, Figure 14 are refer to, according to existing by aforementioned structure, the tool inner thread piece 4 and one of the utility model second embodiment
When some tool external thread pieces 8 are screwed, screw thread S will be advised by the spy by aligning the Luo Feng of the external screw thread 81 at spy rule screw thread S
Crimp even destroy, to insert in the recess 42 that spy advises screw thread S, so that the external screw thread 81 and spy rule screw thread
S is into fastening clip, therefore even if between other internal threads 41 of the tool inner thread piece 4 and the external screw thread 81 of the tool external thread piece 8 still
Small gap is left, still can ensure that the tool inner thread piece 4 is close with the tool external thread piece 8 and firmly screws togather.Accordingly, phase is worked as
When the tool inner thread piece 4 that screws togather is given a shock with tool external thread piece 8, as by mutual fastening clip external screw thread 81 with
The spy advises screw thread S block, and the tool inner thread piece 4 for making to be screwed is not easy to release because of vibrations with tool external thread piece 8, so as to reach
Assembling convenience, lifting packaging efficiency are lifted with previous embodiment identical, reduce the manpower needed for safeguarding and time cost etc.
Technique effect.
Similarly, it is several when the spy of the tool inner thread piece 4 advises screw thread S quantity, and several special rule screw thread S are in the shape of a spiral
When being connected, it prevents that having the effect that external thread piece 8 releases can be substantially improved so that the tool inner thread piece 4 being screwed is outer with tool
Screw element 8 hardly releases because of vibrations.
In addition, refer to Figure 15, the utility model separately discloses a kind of forming internal threads instrument 5, foregoing to machine-shaping
Several internal threads 41 of the tool inner thread piece 4 of second embodiment.The forming internal threads instrument 5 generally includes a handle of a knife 5a and one
Cutter head 5b, cutter head 5b are connected to handle of a knife 5a one end.Handle of a knife 5a has a central shaft A5, cutter head 5b it is coaxially connected in
Handle of a knife 5a one end, to be driven and synchronous rotary by handle of a knife 5a.Cutter head 5b circumferential surface is convexly equipped with spaced set
Several cutting edges 51, i.e. several cutting edges 51 are respectively the bulge loop on cutter head 5b circumferential surfaces, and several cutting edges 51 are simultaneously
It is not connected in the shape of a spiral, cutter head 5b is additionally provided with an at least chip area so as to chip removal.Wherein, cutter head 6b free end is in contracting
Footpath shape, to lift the smoothness of drilling hole.
Respectively the cutting edge 51 includes two inclined-planes 511, forming an angle theta between two inclined-planes 511, respectively the cutting edge 51
Angle theta it is preferably equal.Respectively the cutting edge 51 has the external end edge 512 farthest away from central shaft A5, wherein at least one cutting
Sword 51 forms special rule sword B, and on central shaft A5 direction is orthogonal to, respectively the wide W5 of most path of the cutting edge 51 is equal, and is somebody's turn to do
The spy's rule sword B wide W6 ' of maximum diameter is less than the wide W6 of maximum diameter of other cutting edges 51；For example, the spy is set to advise sword B farthest away from this
A protuberance 52 is provided with mandrel A6, the protuberance 52 protrudes from least inclined-plane 511 that the spy advises sword B, preferred symmetrical protrusion
Sword B two inclined-planes 511 are advised in the spy.The spy advises sword B preferably on cutter head 5b further away from handle of a knife 5a one end.
Figure 12, Figure 15 are refer to, according to can be to be cut to one by foregoing forming internal threads instrument 5, the utility model
The inner peripheral surface processing of the tool inner thread piece 4 of internal thread, is molded with the inner peripheral surface of the tool inner thread piece 4 in the internal thread to be cut
Foregoing several internal threads 41 and special rule screw thread S.
It is noted that though the inner peripheral surface of the tool inner thread piece of the various embodiments described above is presented with isometrical straight-tube shape,
But the inner peripheral surface of tool inner thread piece of the present utility model actually can also be expanding taper kenel.That is, Figure 16 is refer to, should
Have inner thread piece 4 ' the respectively internal thread 41 ' the angle of rifling it is still equal, but respectively the big footpath of the internal thread 41 ' and path towards opening
End is incremented by, and the inner peripheral surface of the tool inner thread piece 4 ' is formed taper.The tool inner thread piece 4 ' can be nut or interior tooth pipe joint,
And can still make the special rule screw thread S in its several internal thread 41 ' that there is the pitch diameter different from other internal threads 41 ', to reach with before
Each embodiment identical technique effect is stated, is no longer described in detail in this.
In summary, tool inner thread piece of the present utility model can be by wherein at least one internal thread and tool external thread piece
External screw thread fastens clip so that and the tool inner thread piece being screwed is not easy to release with tool external thread piece, therefore when the tool inner thread piece is
During nut, install after the nut and the nut need not be clamped again to deforming；When the tool inner thread piece is interior tooth pipe joint, peace
Fill the interior tooth pipe joint and can need not reuse leakproof adhesive plaster and other items such as and can ensure that leak preventing effect is good, therefore, this practicality is new
The tool inner thread piece of type can lift assembling convenience and efficiency.And, due to tool inner thread piece of the present utility model and has outer spiral shell again
Line part can maintain to touch and be not easy to release after screwing togather, therefore inspecting and improve the two frequency for releasing situation again can reduce, and have
Helping reduces manpower and time cost needed for safeguarding, solves the problems, such as long-term existence and is difficult to improve.
In addition, forming internal threads instrument of the present utility model can be used to the internal thread of the foregoing tool inner thread piece of machine-shaping,
The forming internal threads instrument simple structure in itself and be easy to manufacture, having reduces the technique effects such as manufacturing cost.
Claims (16)
1. one kind tool inner thread piece, it is characterised in that：The inner peripheral surface of the tool inner thread piece is provided with several connected in the shape of a spiral interior
Screw thread；Wherein at least one female thread advises screw thread into spy, and the pitch diameter that the spy advises screw thread is different from the pitch diameter of other internal threads, should
The path of spy's rule screw thread is less than or equal to the path of other internal threads.
2. tool inner thread piece as claimed in claim 1, it is characterised in that：Respectively the big footpath of the internal thread is equal, and the spy advises screw thread
Path be less than other internal threads path.
3. tool inner thread piece as claimed in claim 2, it is characterised in that：The Luo Fengchu that the spy advises screw thread has a protrusion
Portion, the protuberance protrude from least one surface to form the Luo Feng both sides that the spy advises screw thread.
4. tool inner thread piece as claimed in claim 1, it is characterised in that：Respectively the path of the internal thread is equal, and the spy advises spiral shell
The big footpath of line is less than the big footpath of other internal threads.
5. tool inner thread piece as claimed in claim 4, it is characterised in that：The Luo Guchu that the spy advises screw thread is recessed with one
Portion, the recess are depressed at least one surface to form the Luo Gu both sides that the spy advises screw thread.
6. the tool inner thread piece as any one of claim 1 to 5, it is characterised in that：The tool inner thread piece has one
Central shaft, several internal threads are connected in the shape of a spiral centered on the central shaft, and the spy advises screw thread and existed located at the tool inner thread piece
One end on the central axis direction.
7. a kind of forming internal threads instrument, it is characterised in that it includes：
One handle of a knife, the handle of a knife have a central shaft；And
One cutter head, the cutter head is coaxially connected in one end of the handle of a knife, and the circumferential surface of the cutter head is provided with several cutting edges, wherein extremely
A few cutting edge forms special rule sword, and on the direction of the central shaft is orthogonal to, respectively the maximum diameter of the cutting edge is wide equal, and is somebody's turn to do
The wide most path less than other cutting edges of most path of spy's rule sword is wide.
8. forming internal threads instrument as claimed in claim 7, it is characterised in that：Several cutting edges are equally arranged at this
The circumferential surface of cutter head, several cutting edges are not connected in the shape of a spiral.
9. forming internal threads instrument as claimed in claim 7, it is characterised in that：Several cutting edges are conjointly set in the shape of a spiral
In the circumferential surface of the cutter head.
10. forming internal threads instrument as claimed in claim 7, it is characterised in that：The spy advises sword from the central shaft most nearby
Provided with a recess being recessed towards the central shaft.
11. forming internal threads instrument as claimed in claim 7, it is characterised in that：The spy advise sword on the cutter head further away from
One end of the handle of a knife.
12. a kind of forming internal threads instrument, it is characterised in that it includes：
One handle of a knife, the handle of a knife have a central shaft；And
One cutter head, the cutter head is coaxially connected in one end of the handle of a knife, and the circumferential surface of the cutter head is provided with several cutting edges, wherein extremely
A few cutting edge forms special rule sword, and on the direction of the central shaft is orthogonal to, respectively the most path of the cutting edge is wide equal, and is somebody's turn to do
The wide maximum diameter less than other cutting edges of maximum diameter of spy's rule sword is wide.
13. forming internal threads instrument as claimed in claim 12, it is characterised in that：Several cutting edges are equally arranged at
The circumferential surface of the cutter head, several cutting edges are not connected in the shape of a spiral.
14. forming internal threads instrument as claimed in claim 12, it is characterised in that：The spy advises sword from the central shaft farthest
Provided with a protuberance.
15. forming internal threads instrument as claimed in claim 14, it is characterised in that：Respectively the cutting edge have two inclined-planes and from
A farthest external end edge of the central shaft, the protuberance protrude from least one inclined-plane that the spy advises sword.
16. forming internal threads instrument as claimed in claim 12, it is characterised in that：The spy advise sword on the cutter head further away from
One end of the handle of a knife.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621286609 | 2016-11-25 | ||
| CN2016212866090 | 2016-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647402U true CN206647402U (en) | 2017-11-17 |
Family
ID=60282629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621469978.3U Expired - Fee Related CN206647402U (en) | 2016-11-25 | 2016-12-29 | Have inner thread piece and forming internal threads instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206647402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105247A (en) * | 2016-11-25 | 2018-06-01 | 诠丰精密工具股份有限公司 | Have inner thread piece and forming internal threads instrument |
-
2016
- 2016-12-29 CN CN201621469978.3U patent/CN206647402U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105247A (en) * | 2016-11-25 | 2018-06-01 | 诠丰精密工具股份有限公司 | Have inner thread piece and forming internal threads instrument |
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| GR01 | Patent grant | ||
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Granted publication date: 20171117 Termination date: 20201229 |