CN109236826A - A kind of installation rivet - Google Patents
A kind of installation rivet Download PDFInfo
- Publication number
- CN109236826A CN109236826A CN201811239847.XA CN201811239847A CN109236826A CN 109236826 A CN109236826 A CN 109236826A CN 201811239847 A CN201811239847 A CN 201811239847A CN 109236826 A CN109236826 A CN 109236826A
- Authority
- CN
- China
- Prior art keywords
- core bar
- thread segment
- shoulder
- diameter
- retained part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 32
- 230000000717 retained effect Effects 0.000 claims description 24
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000011229 interlayer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000011900 installation process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The present invention provides a kind of installation rivet, including core bar and the nail set being set on the core bar；The core bar is equipped with thread segment, and the inner wall of the nail set is equipped with the internal thread segment that can be engaged with thread segment；The nail is put on, and one on front side of the internal thread segment section hollow cylinder is set as local softening section.The present invention, which has, divides the advantage that part is few, clamping force is big.
Description
Technical field
The invention belongs to aerospace fastener areas, and in particular to a kind of novel blind hole installation rivet.
Background technique
Blind hole installation class rivet largely has the characteristics that light-weight, connection is reliable, intensity is high, (example quick and easy for installation
Such as self-plugging rivet), it is widely applied on all kinds of aerospace vehicles.
Blind hole installation class rivet is a kind of rivet of blind riveting, and component is mainly by nail set, core bar and necessary additional
Part (such as core bar being locked the lock ring in nail set) composition.Special riveting tool need to be used when riveting, such as hand riveter, rotation riveting gun
Deng, by dedicated riveting gun pull pumping nail, be allowed to expand, play the role of riveting.Blind hole is installed class rivet and is used particularly suitable for inconvenience
The riveting occasion of conventional rivets (must be riveted from two sides), has the characteristics that in small space riveting molding, quick for installation, phase
Fastener tool than other connections has great advantage.The rivet of blind hole class installation at present mainly has staking type self-plugging rivet and rotation
Riveting type self-plugging rivet etc., staking type self-plugging rivet contain lock ring mostly, core bar are locked into nail set by lock ring, generally existing lock
Ring falls off, not big etc. enough risks of clamping force, and each point of part match relationship of process needs strict coordination consistent, just can guarantee most
Good installation effect；Rotation riveting type self-plugging rivet passes through driving nut for threaded engagement mostly, forms rivet nut (or tube body) convex
Rise, clamping force and antivibration kinetic force after installation be much stronger than staking snap riveting nail, but there is also divide part it is more (driving nut,
Core bar, rivet nut, tube body), the features such as process and complicated each point of part match relationship, and when thickness of interlayer difference, core bar
Breaking part is not flushed with sandwich plate, the installation position more demanding for its Pingdu, generally require pneumatic tool milled it is flat.
Summary of the invention
The purpose of the present invention is to provide a kind of installation rivets, have and divide the advantage that part is few, clamping force is big.
Installation rivet of the invention, including core bar and the nail set being set on the core bar；The core bar is equipped with thread segment,
The inner wall of the nail set is equipped with the internal thread segment that can be engaged with thread segment；The nail is put on, before being located at the internal thread segment
One section of hollow cylinder of side is set as local softening section.
On the core bar, shoulder is equipped on front side of the thread segment, shoulder is located at the front side of the hollow cylinder, the shoulder
The diameter d of the shank portion (the first bar portion) of the front side in portion1Greater than the shank portion (the second bar portion) of the rear side of the shoulder
Diameter d2, the two ratio d2/d1Preferably 80%-95%.Further, the major diameter of the thread segment is less than or equal to the shoulder
Rear side shank portion diameter d2。
The nail is arranged with head, is hollow countersunk head structure, the core bar, which is equipped with, to match with the head of the nail set
The countersunk head of conjunction, the head and countersunk head are respectively positioned on the front side of the shoulder.
On the core bar, shank portion (the second bar portion) length between shoulder and thread segment can be according to mounting surface structure
Thickness is adjusted design.
The nail is put on, and the internal thread segment tail portion has towards axial tightening structure.
It on the core bar, is equipped with disconnected neck portion (or cut-off neck slot) in the front side of the shoulder, the disconnected neck portion and heavy
Head is disposed adjacent and is located on front side of the countersunk head.
It is provided at least one clamping part on the core bar, be preferably provided for the first retained part of drawing and is used for
The second retained part screwed, first retained part and the second retained part are set on front side of the disconnected neck portion, described
It is connected between first retained part and the second retained part by cylinder, the diameter of the cylinder is less than first clamping part
Divide and the diameter of the second retained part, second retained part are equipped with the flower-shape for improving clamping stability.
Installation rivet provided by the present invention can have more by staking and rotation riveting two ways installation forming
Clamping force improves installation reliability, avoids part and falls off bring risk, and core bar and nail set are integrally formed, and point zero
Part is few, can bear shearing force height, can adapt to different thickness of interlayer, and fracture flatness is high.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the schematic diagram that rivet of the present invention is installed through staking during the installation process.
Fig. 3 is the structural schematic diagram that the present invention is installed.
Fig. 4 is the partial enlarged view of Fig. 3.
In the present invention, " front side " and " rear side " indicates two opposite localities, by taking Fig. 1 as an example, in two knots of description
When the relative positional relationship of structure, positioned at the left side structure relative to be located at the right structure position be " front side ", be located at the right
Structure relative to be located at the left side structure position be " rear side ", for example, shoulder is located at " front side " of thread segment, screw thread section
In " rear side " of shoulder.
Specific embodiment
In order to better understand the present invention, below with reference to specific attached drawing, the present invention will be described in detail.
Installation rivet provided by the invention is made of, as shown in Figure 1 core bar 1 and nail 2 two parts of set.
Core bar 1 is made of gripping section 4 and screw section 5, gripping section 4 by the first retained part 6, the second retained part 8 and
Disconnected neck portion 9 forms.First retained part 6 is cylinder, and the second retained part 8 has flower pattern, is used for and clincher tool sleeve
Cooperation, the first retained part 6 are connected by diameter less than the cylinder 7 of the first retained part 6 with the second retained part 8, and first
Retained part 6 and the second retained part 8 are matched with clincher tool, are respectively used to the drawing of screw section 5 and are screwed into.Disconnected neck portion
9 are connected with screw section 5, and the neck portion 9 that breaks after screw section 5 is screwed into place in installation process is broken, and are installed.Screw section 5 by
Countersunk head 10, the first bar portion 11, shoulder 12, the second bar portion 13 and thread segment 14 form.First bar portion 11 is connected with countersunk head 10, the
Two bar portions 13 are connected with the first bar portion 11 by shoulder 12, and the structure of shoulder 12 makes between the first bar portion 11 and the second bar portion 13
Form gradually transition, 13 diameter d of the second bar portion2Less than the first gauge diameter d1, and the second gauge diameter d2With the first gauge diameter
d1Ratio d2/d1Between 80% and 95%, thread segment 14 is connected with the second bar portion 13, the maximum gauge of thread segment 14 be less than or
Equal to the second gauge diameter.Rivet can rivet thickness of interlayer range and pass through 13 length adjustment of the second bar portion.
Nail set 2 is a hollow structure, is made of head 15, bar portion 16, internal thread segment 17.Nail set head 15 is hollow countersunk head
Structure, outer wall are matched with 3 counterbore of mounting surface structure, and inner wall is matched with core bar screw section countersunk head 10.Bar portion 16 and head
15 are connected, and are one section of hollow cylinder structure, and outer wall is matched with 3 hole of mounting surface structure, inner wall and 5 first bar of core bar screw section
Portion 11, shoulder 12, the second bar portion 13 and partial threads section 14 match, and bar portion 16 has one section at 3 bottom of mounting structure
Hollow cylinder 18 is softened by local heat processing technique, protrusion is formed by softening part during the installation process, to installation
3 interlayer of structure forms clamping force to complete to install.Internal thread segment 17 setting nail cover 2 tail portions, be one section can be with core bar spiral shell
The internal screw thread that the thread segment 14 of nail section 5 matches, 17 length of internal thread segment are less than 14 length of thread segment of core bar screw section 5.It is interior
17 tail portion of thread segment has towards axial tightening structure 20, can be improved the clamping force engaged with thread segment 14, prevents core bar 1
Site of engagement is produced relative sliding, wears or is deformed etc. and is bad in drawing process, causes defective mounting or failure.
The installation process of rivet of the present invention are as follows:
Such as Fig. 1, Fig. 2, shown in Fig. 3.Nail set 2 is inserted into 3 sandwiched matrix hole of mounting structure to be connected, then by core bar 1
It is screwed into nail set 2, until 5 countersunk head 10 of core bar screw section is bonded completely with nail set head 15.Core bar gripping section 4 is clamped with riveting gun,
And drawing is carried out to core bar 1 with certain power, meanwhile, another structure of stake resists nail set head 15,5 quilt of core bar screw section
Nail set 2 is gradually pulled out, thread segment 14 and nail set 17 internal screw thread of internal thread segment interaction due to core bar screw section, so that drawing
During core bar 1, nail set internal thread segment 17 is also pulled therewith, due to the effect of power, follow closely sleeved rod portion by local hot-working into
One section of hollow cylinder 18 of row softening forms protrusion 19 along mounting structure interlayer bottom.Then, core bar 1 is screwed into nail set 2, works as core
Bar screw section countersunk head 10 with nail set head 15 be bonded when, continue to be screwed into until core bar gripping section 4 be broken along disconnected neck portion 9, installation
It completes.
Second bar portion 13 of core bar screw section is connected with the first bar portion 11 by shoulder 12, and the structure of shoulder 12 makes first
Gradually transition is formed between bar portion 11 and the second bar portion 13,13 diameter d2 of the second bar portion is less than the first gauge diameter d1, and second
Gauge diameter d2With the first gauge diameter d1Ratio d2/d1Between 80% and 95%.The above design has certain advantage, if the
Two bar portions 13 are equal with 11 diameter of the first bar portion, and diameter is equal to 11 diameter of the first bar portion, then rivet can bear higher cut
Shear force, but in installation drawing process, one section of hollow cylinder 18 that nail 2 bar portions of set are softened by local hot-working is in addition to along peace
Other than the outside protrusion 19 that assembling structure interlayer bottom is formed, there are also slightly inside protrusion 20 (Fig. 4), inwardly protruding parts 20
It is in contact with the second bar portion 13, it will form certain extruding force, nail set 2 can be greatly increased during being screwed into core bar 1 inwardly
Convex portion 20 and the second bar portion of core bar screw section 13 frictional force, lead to be screwed into power increase, also will drive nail set 2 when serious
Rotation leads to install failure simultaneously.If the second bar portion 13 is equal with 11 diameter of the first bar portion, and diameter is equal to the second bar portion 13 directly
Diameter, then nail 2 inside convex portions 20 of set do not connect directly with the second bar portion of core bar screw section 13 in installation drawing process
Touching, there is certain interval, and so as to avoid the risk for driving 2 rotation of nail set when core bar 1 is screwed into, but thinner bar diameter can make rivet can
The shearing force of receiving reduces, also not preferred plan.The diameter that the present invention designs different the first bar portion 11 and the second bar portion 13
It is connected by shoulder 12, can effectively solves problem above, not only can guarantee rivet shear intensity but also is avoided that when being screwed into core bar 1
Drive the risk of 2 rotation of nail set.Rivet can rivet thickness of interlayer range and pass through 13 length adjustment of the second bar portion.It is provided by the invention
Blind hole installation rivet also divides part few, divides matching relationship between part simple, and core bar breaking part is flushed with sandwich plate, is not necessarily to gas
Power driven tools mill equality advantage.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of installation rivet, including core bar (1) and the nail set (2) being set on the core bar (1)；The core bar (1) is equipped with
The inner wall of thread segment (14), the nail set (2) is equipped with the internal thread segment (17) that can be engaged with thread segment (14)；The nail set
(2) on, it is located at one section of hollow cylinder (18) on front side of the internal thread segment (17) and is set as local softening section.
2. installation rivet according to claim 1, which is characterized in that on the core bar (1), before the thread segment (14)
Side is equipped with shoulder (12), and shoulder (12) is located at the front side of the hollow cylinder (18), the rod body part of the front side of the shoulder (12)
The diameter d divided1Greater than the diameter d of the shank portion of the rear side of the shoulder (12)2。
3. installation rivet according to claim 2, which is characterized in that the shank portion of the front side of the shoulder (12) it is straight
Diameter d1With the diameter d of the shank portion of rear side2Ratio d2/d1For 80%-95%.
4. installation rivet according to claim 2, which is characterized in that the major diameter of the thread segment (14) is less than or equal to institute
State the diameter d of the shank portion of the rear side of shoulder (12)2。
5. installation rivet according to claim 2, which is characterized in that the nail set (2) is equipped with head (15), is hollow heavy
Header structure, the core bar (1) is equipped with can be with the countersunk head (10) of head (15) cooperation of the nail set (2), the head
(15) and countersunk head (10) is respectively positioned on the front sides of the shoulder (12).
6. installation rivet according to claim 1, which is characterized in that on the nail set (2), internal thread segment (17) tail
Portion has towards axial tightening structure (20).
7. installation rivet according to claim 5, which is characterized in that on the core bar (1), before the shoulder (12)
Side is equipped with disconnected neck portion (9), and the disconnected neck portion (9) is disposed adjacent with countersunk head (10) and is located on front side of the countersunk head (10).
8. installation rivet according to claim 1, which is characterized in that be provided at least one clamping on the core bar (1)
Portion.
9. installation rivet according to claim 1, which is characterized in that be provided with for drawing on the core bar (1)
One retained part (6) and the second retained part (8) for screwing, first retained part (6) and the second retained part (8)
Between be connected by cylinder (7), the diameter of the cylinder (7) is less than first retained part (6) and the second retained part
(8) diameter, second retained part (8) are equipped with the flower-shape for improving clamping stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239847.XA CN109236826A (en) | 2018-10-23 | 2018-10-23 | A kind of installation rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239847.XA CN109236826A (en) | 2018-10-23 | 2018-10-23 | A kind of installation rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236826A true CN109236826A (en) | 2019-01-18 |
Family
ID=65081504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811239847.XA Pending CN109236826A (en) | 2018-10-23 | 2018-10-23 | A kind of installation rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236826A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303092A (en) * | 2020-11-05 | 2021-02-02 | 航天精工股份有限公司 | Novel high-strength single-face connecting bolt |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2427008A (en) * | 2005-06-10 | 2006-12-13 | Newfrey Llc | Blind rivet with threaded mandrel |
| CN103291719A (en) * | 2013-06-25 | 2013-09-11 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN203476978U (en) * | 2013-09-22 | 2014-03-12 | 贵州航天精工制造有限公司 | Rotating blind rivet |
| KR20150071888A (en) * | 2013-12-19 | 2015-06-29 | 현대자동차주식회사 | Reverse Rivet |
| CN204784051U (en) * | 2015-06-05 | 2015-11-18 | 浙江西子航空紧固件有限公司 | Screw thread self -plugging rivet |
| CN204784052U (en) * | 2015-06-05 | 2015-11-18 | 浙江西子航空紧固件有限公司 | Modified screw thread self -plugging rivet |
| CN105317802A (en) * | 2015-12-04 | 2016-02-10 | 航天精工股份有限公司 | Blind rivet for connecting composite materials capable of adjusting interlayer thickness range |
-
2018
- 2018-10-23 CN CN201811239847.XA patent/CN109236826A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2427008A (en) * | 2005-06-10 | 2006-12-13 | Newfrey Llc | Blind rivet with threaded mandrel |
| CN103291719A (en) * | 2013-06-25 | 2013-09-11 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN203476978U (en) * | 2013-09-22 | 2014-03-12 | 贵州航天精工制造有限公司 | Rotating blind rivet |
| KR20150071888A (en) * | 2013-12-19 | 2015-06-29 | 현대자동차주식회사 | Reverse Rivet |
| CN204784051U (en) * | 2015-06-05 | 2015-11-18 | 浙江西子航空紧固件有限公司 | Screw thread self -plugging rivet |
| CN204784052U (en) * | 2015-06-05 | 2015-11-18 | 浙江西子航空紧固件有限公司 | Modified screw thread self -plugging rivet |
| CN105317802A (en) * | 2015-12-04 | 2016-02-10 | 航天精工股份有限公司 | Blind rivet for connecting composite materials capable of adjusting interlayer thickness range |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303092A (en) * | 2020-11-05 | 2021-02-02 | 航天精工股份有限公司 | Novel high-strength single-face connecting bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |