CN204716710U - One turns over riveting self-locking nut - Google Patents
One turns over riveting self-locking nut Download PDFInfo
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- CN204716710U CN204716710U CN201520380511.0U CN201520380511U CN204716710U CN 204716710 U CN204716710 U CN 204716710U CN 201520380511 U CN201520380511 U CN 201520380511U CN 204716710 U CN204716710 U CN 204716710U
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- locking nut
- cone
- column
- turn over
- reducing
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Abstract
The utility model discloses one and turn over riveting self-locking nut, described in turn over riveting self-locking nut profile be reducing cylindrical body, the cylindrical stage casing of reducing is big column, and big column one end is cone, and the big column the other end is small column; Being provided with reducing hole in the middle of reducing cylindrical body, is macropore in small column, and being minor thread hole in big column and cone, is chamfered transition between macropore and minor thread hole; Cone is provided with the locking slot be uniformly distributed along the circumference.The utility model is that fastening connection piece field increases again an important new product.The structure of turning over riveting self-locking nut achieved be threaded and rivet integrated, coordinating without the need to external force during assembling and carry out screw thread and screw, realize auto lock, the application of swaging technique saves material, time-saving and efficiency, safety reliability is high, stable mechanical performance, easy to maintenance.
Description
Technical field
the utility model relates to one and turns over riveting self-locking nut, belongs to fastening piece processing technique field.
Technical background
along with the raising gradually of Performance of Mechanical Products, the requirement of fastening piece is also more and more higher.Not only require that fastening piece possesses several functions, and the volume of fastening piece, weight, intensity all had higher requirements, also in some engineering goods, for fastening piece require can not with Product jointing, and require to possess good locking property.The processing of existing this kind of fastening piece mainly adopts machined into complete, and machined into is got up cumbersome, and efficiency is low, the high needs that cannot meet develop rapidly of cost.
Model utility content
model utility object of the present utility model is: provide one to turn over riveting self-locking nut, and get up cumbersome to solve prior art processing, efficiency is low, the high problem that cannot meet develop rapidly needs of cost, thus overcomes the deficiencies in the prior art.
the technical solution of the utility model is achieved in that
one of the present utility model turns over riveting self-locking nut, described in turn over riveting self-locking nut profile be reducing cylindrical body, the cylindrical stage casing of reducing is big column, and big column one end is cone, and the big column the other end is small column; Being provided with reducing hole in the middle of reducing cylindrical body, is macropore in small column, and being minor thread hole in big column and cone, is chamfered transition between macropore and minor thread hole; Cone is provided with the locking slot be uniformly distributed along the circumference.
aforementionedly turn in riveting self-locking nut, the connection of described big column and cone and small column is that arc transition connects.
aforementionedly turn in riveting self-locking nut, described minor thread hole is metric thread, inch screw thread, U.S. standard screw thread, whitworth thread or MJ screw thread.
aforementionedly turn in riveting self-locking nut, described cone is that end is little, the closing in circular cone that root is large, and conical surface gradient gets 3 ~ 5 °; The distance closed up at the bottom of end cylindrical and minor thread hole between footpath is 0.5 ~ 0.8mm.
aforementionedly turn in riveting self-locking nut, the distance ≮ 6mm at the bottom of described big column cylindrical and minor thread hole between footpath.
aforementionedly turn in riveting self-locking nut, the wall thickness of described roundlet styletable is 1 ~ 1.5mm.
aforementionedly turn in riveting self-locking nut, the distance at the bottom of described macropore inwall and minor thread hole between footpath is 0.5 ~ 1.5mm.
owing to have employed technique scheme, compared with prior art, the utility model is provided with locking slot to the utility model on cone, and locking slot is determined by the locking torque turning over the requirement of riveting self-locking nut, and groove depth, groove width increase and corresponding increase with locking torque.During riveted joint, be riveted on riveted plating, produce anti-torque while playing riveted joint effect by small column upset, carry out screw thread screw during assembling without the need to external force cooperation, therefore without the need to twisting space, the utility model will turn over riveting technology and be applied to locking class fastener areas.The utility model makes the locking slot size adduction on cone by cold pressurizing and deformation, locking slot groove width narrows, and the point substituting prior art closes up, and the larger locking property of area of contact is good compared with a closing in.Improve elastic properties of materials through heat treatment after closing in, utilize elasticity to reach locking object, change conventional dependence deformation of products generation magnitude of interference and reach locking effect, scientific and reasonable the making full use of of the resilient property of material own.
therefore the utility model is that fastening connection piece field increases again an important new product.The structure of turning over riveting self-locking nut achieved be threaded and rivet integrated, coordinating without the need to external force during assembling and carry out screw thread and screw, realize auto lock, the application of swaging technique saves material, time-saving and efficiency, safety reliability is high, stable mechanical performance, easy to maintenance.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model;
fig. 2 is the utility model size requirement schematic diagram;
fig. 3 is application example schematic diagram of the present utility model.
being labeled as in accompanying drawing: 1-big column; 2-cone; 3-small column; 4-macropore; 5-minor thread hole; 6-chamfering; 7-locking slot; 8-circular arc; 9-riveted plating; 10-turns over riveting self-locking nut; 11-bolt.
Embodiment
below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
one of the present utility model turns over riveting self-locking nut, and as illustrated in fig. 1 and 2, this profile of turning over riveting self-locking nut is reducing cylindrical body, and the cylindrical stage casing of reducing is big column 1, and big column 1 one end is cone 2, and big column 1 the other end is small column 3; Being provided with reducing hole in the middle of reducing cylindrical body, is macropore 4 in small column 3, and being minor thread hole 5 in big column 1 and cone 2, is chamfering 6 transition between macropore 4 and minor thread hole 5; Cone 2 is provided with the locking slot 7 be uniformly distributed along the circumference.Big column 1 is that circular arc 8 transition connects with the connection of cone 2 and small column 3.Minor thread hole 5 is metric thread, inch screw thread, U.S. standard screw thread, whitworth thread or MJ screw thread.Cone 2 is that end is little, the closing in circular cone that root is large, and conical surface gradient gets 3 ~ 5 °; The distance closed up between end cylindrical and footpath, the end, minor thread hole 5 is 0.5 ~ 0.8mm.Distance ≮ 6mm between big column 1 cylindrical and footpath, the end, minor thread hole 5.The wall thickness of small column 3 end is 1 ~ 1.5mm.Distance between macropore 4 inwall and footpath, the end, minor thread hole 5 is 0.5 ~ 1.5mm.
for above-mentioned of the present utility model a kind of processing method of turning over the processing of riveting self-locking nut be, the method adopts plasticity good, metal grain does not rupture after die-forging forming, crystal grain along its length in the direct die-forging forming blank of metal bar of the linear alignment, then through machine flinishing with cold deformation is shaping makes.Described plasticity is good, and metal grain does not rupture after die-forging forming, and the metal bar of crystal grain along its length in the linear alignment comprises structural carbon steel and Alloy Constructional Steel; Structural carbon steel comprises ML30 and ML35 bar; Alloy Constructional Steel comprises 30CrMnSiA, 40CrNiMoA and 40Cr bar.Through machine flinishing with cold deformation is shaping refers to that the semi-finished product after machine flinishing after heat treatment adopt cold pressing technology, the locking slot be positioned on cone is made to produce larger contraction deformation.
Embodiment
manufacture method of the present utility model is the application direct die forging of bar molded blank, shaping through machine flinishing, cold deformation.Its theoretical foundation adopts plasticity good, and its crystal grain does not rupture after die-forging forming, and crystal grain is the linear alignment, i.e. the material of the even full height orientation of grain flow line, and this type of material upsetting is good, can obtain arbitrary shape blank.Common used material has structural carbon steel (as: ML30, ML35), Alloy Constructional Steel (as: 30CrMnSiA, 40CrNiMoA) etc.
what the utility model was processed turns over riveting self-locking nut, and as illustrated in fig. 1 and 2, the profile of turning over riveting self-locking nut is reducing cylindrical body, and the cylindrical stage casing of reducing is big column 1, and big column 1 one end is cone 2, and big column 1 the other end is small column 3; Being provided with reducing hole in the middle of reducing cylindrical body, is macropore 4 in small column 3, and being minor thread hole 5 in big column 1 and cone 2, is chamfering 6 transition between macropore 4 and minor thread hole 5; Cone 2 is provided with the locking slot 7 be uniformly distributed along the circumference.
specifically add man-hour, in Fig. 1, big column 1 diameter dimension is determined according to the core diameter of thread in minor thread hole 5, and big column 1 diameter should be greater than the core diameter of thread at least 6mm in minor thread hole 5.Cone 2 gradient is 3 ° ~ 5 °.Cone 2 closes up conical surface self-assembling formation.The closing in end wall of cone 2 is thick is 0.5 ~ 0.8mm, and requires that smooth surface is attractive in appearance.Locking slot 7 is determined by the locking torque turning over the requirement of riveting self-locking nut, and groove depth, groove width increase and corresponding increase with locking torque.Locking slot 7 makes closing in conical surface size adduction by cold pressurizing and deformation, and locking slot groove width narrows, and after heat treatment, elastic properties of materials increases, and utilizes elasticity to reach the object of locking, and change conventional point and close up, the larger locking property of area of contact is good compared with a closing in.Circular arc 8 transition in Fig. 1 only otherwise produce wedge angle, in order to avoid stress is concentrated and ftracture during heat treatment.Minor thread hole 5 can adopt any one specification in metric thread, inch screw thread, U.S. standard screw thread, whitworth thread and MJ screw thread.The wall thickness that small column is 3 sections is good with 1 ~ 1.5mm, and the too thin riveting intensity of wall thickness is inadequate, and the too thick riveting manufacturability difference of turning over of wall thickness is easy to crack.Diameter macropores in Fig. 1 is just greater than the core diameter of thread 1 ~ 3mm in minor thread hole 5, not affect the smooth assembling of bolt after guaranteeing to turn over riveting.
the length that small column is 3 sections is determined according to the thickness of riveted plating and riveting intensity, when riveted plating is thicker, requires the corresponding lengthening of length dimension of the higher then small column of riveting intensity 3 sections.
fig. 3 is application example figure of the present utility model, as seen from Figure 3, of the present utility model turn over riveting self-locking nut 10 assemble time without the need to twisting space: outwards overturn by small column and rivet with riveted plating 9, anti-torque can be produced after riveting is good, carry out bolt 11 without the need to external force cooperation during assembling to screw, therefore without the need to twisting space.Method of the present utility model makes locking slot size adduction by cold pressurizing and deformation, locking slot groove width narrows, and after heat treatment, elastic properties of materials increases, and utilizes elasticity to reach the object of locking, change conventional point to close up, the larger locking property of area of contact is good compared with a closing in.
Claims (7)
1. turn over a riveting self-locking nut, it is characterized in that: described in turn over riveting self-locking nut profile be reducing cylindrical body, the cylindrical stage casing of reducing is big column (1), and big column (1) one end is cone (2), and big column (1) the other end is small column (3); Being provided with reducing hole in the middle of reducing cylindrical body, is macropore (4) in small column (3), and being minor thread hole (5) in big column (1) and cone (2), is chamfering (6) transition between macropore (4) and minor thread hole (5); Cone (2) is provided with the locking slot (7) be uniformly distributed along the circumference.
2. turn over riveting self-locking nut according to claim 1, it is characterized in that: described big column (1) is that circular arc (8) transition connects with the connection of cone (2) and small column (3).
3. turn over riveting self-locking nut according to claim 1, it is characterized in that: described minor thread hole (5) is metric thread, inch screw thread, U.S. standard screw thread, whitworth thread or MJ screw thread.
4.
according toturn over riveting self-locking nut described in claim 1, it is characterized in that: described cone (2) is that end is little, the closing in circular cone that root is large, conical surface gradient gets 3 ~ 5 °; The distance closed up between end cylindrical and minor thread hole (5) footpath, the end is 0.5 ~ 0.8mm.
5. turn over riveting self-locking nut according to claim 1, it is characterized in that: the distance ≮ 6mm between described big column (1) cylindrical and minor thread hole (5) footpath, the end.
6. turn over riveting self-locking nut according to claim 1, it is characterized in that: the wall thickness that described small column (3) is held is 1 ~ 1.5mm.
7. turn over riveting self-locking nut according to claim 1, it is characterized in that: the distance between described macropore (4) inwall and minor thread hole (5) footpath, the end is 0.5 ~ 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380511.0U CN204716710U (en) | 2015-06-05 | 2015-06-05 | One turns over riveting self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380511.0U CN204716710U (en) | 2015-06-05 | 2015-06-05 | One turns over riveting self-locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716710U true CN204716710U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520380511.0U Expired - Fee Related CN204716710U (en) | 2015-06-05 | 2015-06-05 | One turns over riveting self-locking nut |
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| Country | Link |
|---|---|
| CN (1) | CN204716710U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963927A (en) * | 2015-06-05 | 2015-10-07 | 贵州航天精工制造有限公司 | Flanging and riveting self-locking nut and machining method thereof |
| CN106545563A (en) * | 2016-12-08 | 2017-03-29 | 河南航天精工制造有限公司 | Antivibration anti-loosing nut |
| CN113606236A (en) * | 2021-08-23 | 2021-11-05 | 航天精工股份有限公司 | Novel supporting plate self-locking nut with excellent locking performance |
-
2015
- 2015-06-05 CN CN201520380511.0U patent/CN204716710U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963927A (en) * | 2015-06-05 | 2015-10-07 | 贵州航天精工制造有限公司 | Flanging and riveting self-locking nut and machining method thereof |
| CN106545563A (en) * | 2016-12-08 | 2017-03-29 | 河南航天精工制造有限公司 | Antivibration anti-loosing nut |
| CN113606236A (en) * | 2021-08-23 | 2021-11-05 | 航天精工股份有限公司 | Novel supporting plate self-locking nut with excellent locking performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160605 |