CN105221541A - A kind of sealed type non-metallic insert self-locking nut and forming stamper - Google Patents
A kind of sealed type non-metallic insert self-locking nut and forming stamper Download PDFInfo
- Publication number
- CN105221541A CN105221541A CN201510606048.1A CN201510606048A CN105221541A CN 105221541 A CN105221541 A CN 105221541A CN 201510606048 A CN201510606048 A CN 201510606048A CN 105221541 A CN105221541 A CN 105221541A
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- China
- Prior art keywords
- nut
- metallic insert
- self
- locking nut
- seal closure
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Links
- 238000002788 crimping Methods 0.000 claims abstract description 21
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 239000004677 Nylon Substances 0.000 description 31
- 229920001778 nylon Polymers 0.000 description 31
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of sealed type non-metallic insert self-locking nut and forming stamper, a kind of non-metallic insert self-locking nut, comprise basal body of nut, basal body of nut comprises the annular groove above helical thread portion and helical thread portion, non-metallic insert is provided with in annular groove, the top of non-metallic insert is provided with the seal closure contacting with non-metallic insert and coordinate, described seal closure has the outer of annular and turns edge, the nut crimping that seal closure and non-metallic insert are sealed and matched is turned edge outside the from up to down press seal cover that the upper end of basal body of nut has a fold inward, the setting of seal closure avoids bolt and self-locking nut and installs and under cooperation place is in rugged environment for a long time, corrosion occurs and cause dismantling inconvenience, protect the head of bolt shank simultaneously, damage bolt shank when preventing itself and other object from colliding and cause dismounting difficulty.
Description
Technical field
The invention belongs to technical field of fastening, be specifically related to a kind of sealed type non-metallic insert self-locking nut and forming stamper.
Background technique
Non-metallic insert self-locking nut is the nylon ring that setting-in internal diameter is slightly less than effective diameter of thread in nut body, and after adapted bolt contacts with nylon ring, extrude nylon ring, nylon ring is extruded screw thread, bolt thread tightly " is embraced " by nylon ring.Due to the effect of this interference fit, form the friction torque of impedance screw thread rotation, thus make nut have self-locking anti-loosing function.Meanwhile, because nylon material has good toughness, elasticity and wear resistance, effectively can absorb external shock vibration, therefore non-metallic insert self-locking nut has good anti-loosening property.The utility model patent of Chinese patent literature CN202348927U discloses a kind of supporting plate nylon mosaic self locking nut, comprise basal body of nut, basal body of nut comprises helical thread portion and the annular groove for installing nylon ring inserts, the described basal body of nut being provided with nylon ring one end is provided with closing in, the internal diameter of described nylon ring is less than the middle warp of internal thread in basal body of nut, and is greater than the footpath, the end of internal thread in basal body of nut.But there is following shortcoming in this supporting plate nylon mosaic self locking nut structure: one is when external ambient humidity or when having corrosivity, in long-term work process, can be there is corrosion or chemical corrosion in the joint of bolt and this self-locking nut, cause this self-locking nut intensity to reduce and dismounting inconvenience; Two is after bolt to coordinate with self-locking nut and installs, if bolt shank have passed through, nylon inserts is also outer stretches out a part of bolt shank, easy hook thing or collide with other objects in the course of the work, causes this part overhanging bolt shank to cause damage, makes self-locking nut dismantle difficulty; Three, closing in basal body of nut arranged is for having the closing in turned edge outside level, turn edge outside level and can not very effectively compress nylon inserts, if use larger power to compress nylon inserts to make to turn edge outside level when nut crimping is shaping, the distortion of nylon inserts will certainly be caused, this is for the good nylon inserts with certain internal diameter size of calculating and setting, precession can not go smoothly when bolt screws this nut, cause difficulty is installed.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of sealed type non-metallic insert self-locking nut that can seal and protect bolt shank, meanwhile, the present invention also aims to provide and a kind of the shaping forming stamper that closes up being carried out to this self-locking nut.
The present invention adopts following technological scheme: a kind of non-metallic insert self-locking nut, comprise the basal body of nut that axis extends along the vertical direction, basal body of nut comprises helical thread portion and is arranged at the annular groove above helical thread portion, non-metallic insert is provided with in annular groove, described non-metallic insert self-locking nut also comprises being arranged at and contacts the seal closure coordinated with non-metallic insert above non-metallic insert, described seal closure has the outer of annular and turns edge, the nut crimping that seal closure and non-metallic insert are sealed and matched is turned edge outside the from up to down press seal cover that the upper end of described basal body of nut has a fold inward.
Described nut crimping is hook-type closing-in structure, and nut crimping comprises the arc folding portion of fold inward and the hook that returns of the backward lower hook of turnover goes back to portion, and described hook goes back to the lower end in portion for contacting compression fit with outer the turning edge of seal closure.
Described seal closure is metal sealing cover.
A kind of forming stamper, comprise upper die tooling, the lower end surface of described upper die tooling is provided with the shrinkage pool that the axis for holding seal closure extends along the vertical direction, the periphery of shrinkage pool is provided with for carrying out the shaping forming tank that closes up to self-locking nut, the external groove sidevall of forming tank contacts with the outer side wall of self-locking nut and coordinates, and is all connected by arc transition between the bottom land of forming tank and inside and outside cell wall.
Described forming tank comprises the internal groove side wall returning hook for the hook portion of returning at the bottom of the shaping curve bath of the arc folding portion to nut crimping with for guiding dresser nut to close up.
The length gone up along the vertical direction of described internal groove side wall is less than the length gone up along the vertical direction of external groove sidevall.
Beneficial effect of the present invention is: a kind of non-metallic insert self-locking nut, comprise basal body of nut, basal body of nut comprises the annular groove above helical thread portion and helical thread portion, non-metallic insert is provided with in annular groove, the top of non-metallic insert is provided with the seal closure contacting with non-metallic insert and coordinate, described seal closure has the outer of annular and turns edge, the nut crimping that seal closure and non-metallic insert are sealed and matched is turned edge outside the from up to down press seal cover that the upper end of basal body of nut has a fold inward, the setting of seal closure avoids bolt and self-locking nut and installs and under cooperation place is in rugged environment for a long time, corrosion occurs and cause dismantling inconvenience, protect the head of bolt shank simultaneously, damage bolt shank when preventing itself and other object from colliding and cause dismounting difficulty.
Further, nut crimping is hook-type closing-in structure, the arc folding portion and the hook that returns of the backward lower hook of turnover that comprise fold inward go back to portion, described hook goes back to the lower end in portion for the outer compression fit that turns edge with seal closure, the closing-in structure of hook-type is used more effectively to turn edge and non-metallic insert by the outer of press seal cover, self-locking nut is made to have better sealability, avoid prior art China and foreign countries to turn edge as the closing-in structure of level is in order to the distortion of nylon inserts compressing nylon inserts more firmly and cause, cause bolt that the problem of difficulty is installed further.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of a kind of non-metallic insert self-locking nut of the present invention;
Fig. 2 is the structural representation before basal body of nut closes up;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the structural representation of non-metallic insert;
Fig. 5 is the structural representation of seal closure;
Fig. 6 is the structural representation of an embodiment of a kind of forming stamper of the present invention;
Fig. 7 is the partial enlarged drawing of the forming tank in Fig. 6;
Structural representation when Fig. 8 is the assembling of forming stamper, locating stud and base for supporting and non-metallic insert self-locking nut.
Embodiment
Below in conjunction with embodiment, the invention will be further described, a kind of structural representation of non-metallic insert self-locking nut as Figure 1-5, comprise the basal body of nut 1 that axis extends along the vertical direction, basal body of nut 1 comprises the annular groove 1-2 above helical thread portion 1-1 and helical thread portion 1-1, non-metallic insert is provided with in annular groove 1-2, in the present embodiment, non-metallic insert is nylon inserts 3, the top of nylon inserts 3 is provided with seal closure 4, the setting of seal closure 4 avoids bolt and self-locking nut and installs and under cooperation place is in rugged environment for a long time, corrosion occurs and cause dismantling inconvenience, protect the head of bolt shank simultaneously, damage bolt shank when preventing itself and other object from colliding and cause dismounting difficulty.Seal closure has the outer of annular and turns edge 8, the upper end of basal body of nut 1 has the outer of the from up to down press seal cover 4 of fold inward and turns edge 8 with the nut crimping 5 making seal closure 4 and non-metallic insert be sealed and matched, nut crimping 5 is hook-type closing-in structure, nut crimping 5 comprises the arc folding portion 5-1 of fold inward and the hook that returns of the backward lower hook of turnover returns portion 5-2, the lower end hooking back portion 5-2 is used for turning edge with seal closure 4 outer and 8 contacts compression fit, the nut crimping structure of hook-type is used more effectively to turn edge and non-metallic insert by the outer of press seal cover, self-locking nut is made to have better sealability, avoiding prior art China and foreign countries turns edge as the distortion of nylon inserts of nut crimping structure in order to compress nylon inserts more firmly and cause of level, cause bolt that the problem of difficulty is installed further.Nylon inserts 3 is annular insert, the internal diameter of nylon inserts 3 is less than the diameter of the endoporus 7 of basal body of nut 1, extruding nylon inserts after bolt contacts with nylon inserts 3, screw thread is extruded by nylon inserts 3 inner hole wall, the screw thread of bolt is tightly embraced by nylon inserts 3, thus makes nut have self-locking anti-loosing function.Certainly, in other embodiments of a kind of non-metallic insert self-locking nut of the present invention, non-metallic insert also can be rubber insert or polyester fibre inserts; Nut crimping also can close up for having anti-" L " shape turned edge outside level; Seal closure also can be nonmetallic material.
A kind of structural representation of forming stamper as shown in figs 6-8, comprise upper die tooling 9, the lower end surface of upper die tooling 9 is provided with the shrinkage pool 10 for holding seal closure, the periphery of shrinkage pool 10 is provided with the forming tank 11 for carrying out the shaping annular of closing in self-locking nut, forming tank 11 comprises the external groove sidevall 11-1 contacting with the outer side wall of self-locking nut and coordinate, 11-2 and the hook for guiding dresser nut to close up at the bottom of the curve bath shaping to the arc folding portion 5-1 of nut crimping return the internal groove side wall 11-3 that portion 5-2 returns hook, the bottom land 11-2 of forming tank and interior, all connected by arc transition between external groove sidevall.
With the upper die tooling 9 of forming stamper shaping coordinate for bed die, bed die comprises bed die base (not providing in figure) and is arranged at the mounting and positioning device for installing location non-metallic insert self-locking nut on bed die base, mounting and positioning device comprise when bed die and upper die tooling 9 with the use of time with the dead in line of the groove 10 of upper die tooling 9 for the locating stud 12 that self-locking nut is located penetrated in self-locking nut endoporus 7 and the base for supporting 13 being used for supporting the lower end surface of self-locking nut be fixedly connected with locating stud 12, bed die base is provided with for the hard-wired mounting groove of base for supporting, base for supporting is ring, base for supporting 13 outer circumferential face of ring is provided with base for supporting worm structure, mounting groove inwall is provided with the mounting groove worm structure matched with base for supporting 13 worm structure.Certainly, in other embodiments of a kind of forming stamper of the present invention, the bottom land of forming tank also can be at the bottom of horizontal slot; The external groove sidevall of forming tank also can be the external groove sidevall of the inclination of bottom-up inside closing in, now without bottom land and internal groove side wall.
The nut crimping process of forming stamper to self-locking nut is: metal sealing cover and nylon inserts are put into basal body of nut inside by manual operations, as shown in Figure 8, are placed on mounting and positioning device by the nut assembly that metal sealing cover and nylon inserts are housed.Opening mold, upper die tooling is descending, and the external groove sidevall of the forming tank of the annular on upper die tooling contacts close fit with the outer side wall of the upper end of self-locking nut, and upper die tooling continues descending, the upper end of self-locking nut, to in-flanges, forms nut crimping with press seal metal sealing cover and nylon inserts.
Claims (6)
1. a non-metallic insert self-locking nut, comprise the basal body of nut that axis extends along the vertical direction, basal body of nut comprises helical thread portion and is arranged at the annular groove above helical thread portion, non-metallic insert is provided with in annular groove, it is characterized in that: described non-metallic insert self-locking nut also comprises being arranged at and contacts the seal closure coordinated with non-metallic insert above non-metallic insert, described seal closure has the outer of annular and turns edge, the nut crimping that seal closure and non-metallic insert are sealed and matched is turned edge outside the from up to down press seal cover that the upper end of described basal body of nut has a fold inward.
2. a kind of non-metallic insert self-locking nut according to claim 1, it is characterized in that: described nut crimping is hook-type closing-in structure, nut crimping comprises the arc folding portion of fold inward and the hook that returns of the backward lower hook of turnover goes back to portion, and described hook goes back to the lower end in portion for contacting compression fit with outer the turning edge of seal closure.
3. a kind of non-metallic insert self-locking nut according to claim 1 and 2, is characterized in that: described seal closure is metal sealing cover.
4. a forming stamper, comprise upper die tooling, it is characterized in that: the lower end surface of described upper die tooling is provided with the shrinkage pool that the axis for holding seal closure extends along the vertical direction, the periphery of shrinkage pool is provided with for carrying out the shaping forming tank that closes up to self-locking nut, the external groove sidevall of forming tank contacts with the outer side wall of self-locking nut and coordinates, and is all connected by arc transition between the bottom land of forming tank and inside and outside cell wall.
5. a kind of forming stamper according to claim 4, is characterized in that: described forming tank comprises the internal groove side wall returning hook for the hook portion of returning at the bottom of the shaping curve bath of the arc folding portion to nut crimping with for guiding dresser nut to close up.
6. a kind of forming stamper according to claim 5, is characterized in that: the length gone up along the vertical direction of described internal groove side wall is less than the length gone up along the vertical direction of external groove sidevall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606048.1A CN105221541A (en) | 2015-09-22 | 2015-09-22 | A kind of sealed type non-metallic insert self-locking nut and forming stamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606048.1A CN105221541A (en) | 2015-09-22 | 2015-09-22 | A kind of sealed type non-metallic insert self-locking nut and forming stamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221541A true CN105221541A (en) | 2016-01-06 |
Family
ID=54990713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510606048.1A Pending CN105221541A (en) | 2015-09-22 | 2015-09-22 | A kind of sealed type non-metallic insert self-locking nut and forming stamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221541A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538614A (en) * | 2018-11-28 | 2019-03-29 | 海盐县华昇汽车配件有限公司 | A kind of non-metallic insert stop nut |
| CN112576593A (en) * | 2020-12-16 | 2021-03-30 | 河南航天精工制造有限公司 | Nut body size calculation method of non-metal insert self-locking nut |
| CN114109996A (en) * | 2021-11-29 | 2022-03-01 | 中国航发沈阳发动机研究所 | Self-locking nut structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB507104A (en) * | 1938-02-19 | 1939-06-09 | Oliver Edwin Simmonds | Improvements relating to self-locking nuts and like internally screw-threaded members |
| CN2078391U (en) * | 1990-05-29 | 1991-06-05 | 黄浩 | Full nut |
| US6186719B1 (en) * | 1998-12-30 | 2001-02-13 | Ming-Chung Chou | Capped lock nut |
| CN2639607Y (en) * | 2003-08-14 | 2004-09-08 | 锋沐股份有限公司 | Multiple anti-loosening nuts |
| CN2694028Y (en) * | 2004-04-22 | 2005-04-20 | 李�远 | Back stop locknut |
| JP2012052579A (en) * | 2010-08-31 | 2012-03-15 | Hamanaka Nut Kk | Hexagon cap nut |
| CN202498174U (en) * | 2012-03-29 | 2012-10-24 | 河南航天精工制造有限公司 | Closing die for self-locking nut |
| CN202571006U (en) * | 2012-04-13 | 2012-12-05 | 河南航天精工制造有限公司 | Self-locking nut necking-in mold |
-
2015
- 2015-09-22 CN CN201510606048.1A patent/CN105221541A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB507104A (en) * | 1938-02-19 | 1939-06-09 | Oliver Edwin Simmonds | Improvements relating to self-locking nuts and like internally screw-threaded members |
| CN2078391U (en) * | 1990-05-29 | 1991-06-05 | 黄浩 | Full nut |
| US6186719B1 (en) * | 1998-12-30 | 2001-02-13 | Ming-Chung Chou | Capped lock nut |
| CN2639607Y (en) * | 2003-08-14 | 2004-09-08 | 锋沐股份有限公司 | Multiple anti-loosening nuts |
| CN2694028Y (en) * | 2004-04-22 | 2005-04-20 | 李�远 | Back stop locknut |
| JP2012052579A (en) * | 2010-08-31 | 2012-03-15 | Hamanaka Nut Kk | Hexagon cap nut |
| CN202498174U (en) * | 2012-03-29 | 2012-10-24 | 河南航天精工制造有限公司 | Closing die for self-locking nut |
| CN202571006U (en) * | 2012-04-13 | 2012-12-05 | 河南航天精工制造有限公司 | Self-locking nut necking-in mold |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538614A (en) * | 2018-11-28 | 2019-03-29 | 海盐县华昇汽车配件有限公司 | A kind of non-metallic insert stop nut |
| CN112576593A (en) * | 2020-12-16 | 2021-03-30 | 河南航天精工制造有限公司 | Nut body size calculation method of non-metal insert self-locking nut |
| CN112576593B (en) * | 2020-12-16 | 2022-05-03 | 河南航天精工制造有限公司 | Nut body size calculation method of non-metal insert self-locking nut |
| CN114109996A (en) * | 2021-11-29 | 2022-03-01 | 中国航发沈阳发动机研究所 | Self-locking nut structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |
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| RJ01 | Rejection of invention patent application after publication |