CN203476978U - Rotating blind rivet - Google Patents
Rotating blind rivet Download PDFInfo
- Publication number
- CN203476978U CN203476978U CN201320583607.8U CN201320583607U CN203476978U CN 203476978 U CN203476978 U CN 203476978U CN 201320583607 U CN201320583607 U CN 201320583607U CN 203476978 U CN203476978 U CN 203476978U
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- CN
- China
- Prior art keywords
- core bar
- rivet
- nail
- driving casing
- thread
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rotating blind rivet. The rotating blind rivet comprises a rivet sleeve (1), and a core bar (2) is arranged in the rivet sleeve (1). A boss (5) is arranged at one end of the core bar (2), and a section of external thread (6) is arranged at the other end of the core bar (2). A drive sleeve (4) is arranged on the external thread (6), an internal thread (13) is arranged in an inner hole of the drive sleeve (4), and the internal thread (13) is matched and connected with the external thread (6) on the core bar (2). The rivet sleeve (1) is located between the drive sleeve (4) and the boss (5), wherein the boss (5) is arranged on the core bar (2). The technical problem that the fracture of the core bar is uneven in an existing rivet pulling mode is obviously solved through a rivet spinning mode, riveting strength is improved, and riveting quality is guaranteed. In addition, thread rivet spinning is adopted, the machining process is simplified, the thread on the core bar can be machined through a thread rolling machine, and machining efficiency can be improved.
Description
Technical field
the utility model relates to a kind of rotary core pulling rivet, belongs to and is fastenedly connected technical field.
Background technique
in mechanical erection or mounting technology, often use self-plugging rivet to connect.The self-plugging rivet using is at present used staking formula self-plugging rivet more, and existing this staking formula self-plugging rivet, is to pull core bar by riveting gun, causes nail cover to deform to reach the effect being fastenedly connected.Existing staking formula blind rivet mandrel convexity causes, and is difficult to guarantee the conformity of riveted joint size.For common mechanical, existing staking formula self-plugging rivet meets the matching requirements of product substantially.But at some special occasions, as outward appearance being had to the occasion of strict demand, or in the exigent Aerospace Products of riveting intensity, existing staking formula self-plugging rivet is difficult to meet requirement of strength and appearance requirement.Existing assurance in addition.At existing staking formula self-plugging rivet, because core bar length is long, add and need man-hour more tool and mould to guarantee, processing trouble, inefficiency.
Summary of the invention
the purpose of this utility model is, a kind of rotary core pulling rivet is provided, the deficiency existing to overcome existing staking formula self-plugging rivet.Meet the technical requirements of special occasions or Aerospace Products.
the technical solution of the utility model:
a rotary core pulling rivet, comprises nail cover, in nail cover, is provided with core bar; Described core bar one end is provided with boss, and the core bar the other end is provided with one section of outside thread; Outside thread is provided with driving casing, the internal thread being provided with in the endoporus of driving casing, and the outside thread on internal thread and core bar is connected; Nail overlaps between the boss on driving casing and core bar.
in aforementioned rotary core pulling rivet, described nail cover is tubulose, and nail cover one end is provided with the head of a nail, and head of a nail one end of nail cover is near driving casing; The mouth of pipe of head of a nail one end is horn mouth.
in aforementioned rotary core pulling rivet, the core bar between described driving casing and nail cover is provided with lock ring, and lock ring is annular metal hoop, and lock ring is provided with skewed slot.
in aforementioned rotary core pulling rivet, the external thread section both sides of described core bar are provided with clamping plane; The middle part of core bar is provided with cut-off neck slot.
in aforementioned rotary core pulling rivet, described driving casing is tubulose, in the endoporus of driving casing, is provided with internal thread, and driving casing one end is six square toes, and the other end is socket cap, and the endoporus place of the end of socket cap is provided with lock ring groove.
owing to having adopted technique scheme, compared with prior art, the whole fracture height dimension that causes of existing staking mode convexity is measured the larger error of existence; The utility model adopts the riveting mode of revolving.When riveting molding, while rotating gradually, core bar moves axially, mobile mild, material its stress surface fracture in the situation that being subject to torsion is more smooth, obviously improved the technical problem of existing staking mode core bar convexity, also improved riveting intensity simultaneously, ensured and riveting quality.In addition, the utility model adopts screw thread to revolve riveting, has simplified processing technology, and the screw thread on core bar can adopt thread-rolling machine to process, and can improve work efficiency.
Accompanying drawing explanation
fig. 1 is plane structure schematic diagram of the present utility model;
fig. 2 is perspective view of the present utility model;
fig. 3 is the structural representation of core bar;
fig. 4 is the structural representation of lock ring;
fig. 5 is the structural representation of driving casing;
fig. 6 is the structural representation of nail cover.
being labeled as in accompanying drawing: 1-follows closely cover, 2-core bar, 3-lock ring, 4-driving casing, 5-boss, 6-outside thread, 7-clamping plane, 8-cut-off neck slot, 9-skewed slot, the 10-head of a nail, 11-horn mouth, 12-six square toes, 13-internal thread, 14-socket cap, 15-lock ring groove.
Embodiment
below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to any restriction of the present utility model.
the utility model is that a kind of to revolve rivetting method constructed according to following, and as depicted in figs. 1 and 2, the method adopts rotary core pulling rivet to rivet; Riveted joint process is as follows: first parts to be riveted with on matrix, bore a riveted holes corresponding with rotary core pulling rivet external diameter; Again the nail cover 1 of rotary core pulling rivet is inserted in parts to be riveted and matrix hole riveted joint, make to follow closely the riveted holes aperture that the head of a nail 10 overlapping on 1 pushes against parts to be riveted; Then with riveting gun, the driving casing of rotary core pulling rivet 4 is fixing, riveting gun clamps the core bar of rotary core pulling rivet 2 simultaneously, and riveting gun drives core bar 2 rotations, between core bar 2 and driving casing 4 for being threaded; Core bar 2 moves axially from nail cover 1 and extracts out along nail cover 1 in rotary course, end at core bar 2 while the boss 5 extruding nail covers 1 of core bar 2 ends rotate the process of extracting out from nail cover 1 in, make nail cover 1 that diameter occur and become large, shorten length distortion, is riveted together parts to be riveted and matrix.Described core bar 2 is provided with cut-off neck slot 8, and when the pulling force that core bar 2 is subject to surpasses after the ultimate tension at cut-off neck slot 8 places, core bar 2 disconnects at cut-off neck slot 8 places, and one section of core bar 2 end and nail cover 1 are stayed in riveted holes as riveted joint body.The bore orifice of the head of a nail 10 one end of described nail cover 1 is horn mouth 11, and the core bar 2 at horn mouth 11 places is provided with lock ring 3, and lock ring 3 is provided with skewed slot 9; In the process of extracting out at core bar 2,4 pairs of lock rings 3 of driving casing apply an axial force of pointing to horn mouth 11, at lock ring 3 in horn mouth direction moving process, lock ring 3 is subject to the radial force effect of horn mouth 11, skewed slot on lock ring 3 narrows down gradually, the cut-off neck slot that is clipped in core bar 28 right hand edges tightly, come off with the core bar 2 that prevents from staying in riveted holes.On described core bar 2, outside thread 6 both sides are provided with clamping plane 7, and the clamping plane 7 that riveting gun is clamped in core bar 2 both sides drives core bar 2 rotations; During core bar 2 rotation, driving casing 4 is not rotated by riveting gun restriction together with core bar 2.
constructed and for of the present utility model a kind of rotary core pulling rivet of said method, be that this rotary core pulling rivet comprises nail cover 1, in nail cover 1, is provided with core bar 2 according to said method; Described core bar 2 one end are provided with boss 5, and core bar 2 the other ends are provided with one section of outside thread 6; Outside thread 6 is provided with driving casing 4, the internal thread 13 being provided with in the endoporus of driving casing 4, and internal thread 13 is connected with the outside thread 6 on core bar 2; Between the boss 5 of nail cover 1 on driving casing 4 and core bar 2.Described nail cover 1 is tubulose, and nail cover 1 one end is provided with the head of a nail 10, and the head of a nail 10 one end of nail cover 1 are near driving casing 4; The mouth of pipe of the head of a nail 10 one end is horn mouth 11.Core bar 2 between described driving casing 4 and nail cover 1 is provided with lock ring 3, and lock ring 3 is annular metal hoop, and lock ring 3 is provided with skewed slot 9.6 sections of both sides of outside thread of described core bar 2 are provided with clamping plane 7; The middle part of core bar 2 is provided with cut-off neck slot 8.Described driving casing 4 is tubulose, is provided with internal thread 13 in the endoporus of driving casing 4, and driving casing 4 one end are six square toes 12, and the other end is socket cap 14, and the endoporus place of the end of socket cap 14 is provided with lock ring groove 15.
Claims (5)
1. a rotary core pulling rivet, comprises nail cover (1), in nail cover (1), is provided with core bar (2); It is characterized in that: described core bar (2) one end is provided with boss (5), core bar (2) the other end is provided with one section of outside thread (6); Outside thread (6) is provided with driving casing (4), the internal thread (13) being provided with in the endoporus of driving casing (4), and internal thread (13) is connected with the outside thread (6) on core bar (2); Nail cover (1) is positioned between the boss (5) on driving casing (4) and core bar (2).
2. rotary core pulling rivet according to claim 1, is characterized in that: described nail cover (1) is tubulose, and nail cover (1) one end is provided with the head of a nail (10), and the head of a nail (10) one end of nail cover (1) is near driving casing (4); The mouth of pipe of the head of a nail (10) one end is horn mouth (11).
3. rotary core pulling rivet according to claim 2, is characterized in that: the core bar (2) between described driving casing (4) and nail cover (1) is provided with lock ring (3), and lock ring (3) is annular metal hoop, and lock ring (3) is provided with skewed slot (9).
4. rotary core pulling rivet according to claim 3, is characterized in that: outside thread (6) section both sides for described core bar (2) are provided with clamping plane (7); The middle part of core bar (2) is provided with cut-off neck slot (8).
5. rotary core pulling rivet according to claim 4, it is characterized in that: described driving casing (4) is tubulose, in the endoporus of driving casing (4), be provided with internal thread (13), driving casing (4) one end is six square toes (12), the other end is socket cap (14), and the endoporus place of the end of socket cap (14) is provided with lock ring groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583607.8U CN203476978U (en) | 2013-09-22 | 2013-09-22 | Rotating blind rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583607.8U CN203476978U (en) | 2013-09-22 | 2013-09-22 | Rotating blind rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476978U true CN203476978U (en) | 2014-03-12 |
Family
ID=50225314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320583607.8U Expired - Fee Related CN203476978U (en) | 2013-09-22 | 2013-09-22 | Rotating blind rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236826A (en) * | 2018-10-23 | 2019-01-18 | 航天精工股份有限公司 | A kind of installation rivet |
-
2013
- 2013-09-22 CN CN201320583607.8U patent/CN203476978U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236826A (en) * | 2018-10-23 | 2019-01-18 | 航天精工股份有限公司 | A kind of installation rivet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160922 |