CN104977107B - Method for the clamping force for determining riveting - Google Patents
Method for the clamping force for determining riveting Download PDFInfo
- Publication number
- CN104977107B CN104977107B CN201510147609.6A CN201510147609A CN104977107B CN 104977107 B CN104977107 B CN 104977107B CN 201510147609 A CN201510147609 A CN 201510147609A CN 104977107 B CN104977107 B CN 104977107B
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- CN
- China
- Prior art keywords
- rivet
- torque
- riveting
- clamping force
- blind
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
The present invention relates to a kind of method for being used to determine riveting, the especially clamping force of blind riveting, wherein, by being formed with the rivet of manufactured head and strained rivet tail, this method has following steps for the riveting：Apply a torque on rivet；And the torque of the definite rivet, especially starting torque.
Description
Technical field
The present invention relates to a kind of method for the clamping force for being used to determine riveting.
Background technology
Rivet is mainly used for unremovably attaching plate elements, and rivet has the following advantages that relative to screw：In component not
Screw thread must be processed.Different from common riveting, only need to enter from side for connection procedure in the case of blind riveting
The component to be connected.
Determine the clamping force of riveting, especially blind riveting especially batch into production for evaluation bonding strength and riveting
Quality monitoring is important.
The riveting of form locking can be visually identified by strained rivet tail in principle.But the quality of riveting,
I.e. actual intensity can be only determined on special testing stand.But the measuring device by being known from the state of the art is in principle
On can not measure original connection because always a part for measuring device, such as Measuring plate must be often clamped into together
In the connection to be examined.
Ortwin doctors Hahn in pa moral Berne University material and interconnection technique laboratory teach and Mathias Heger
Final report " Ermittlung des Einfluss von verbleibender Klemmkraft of the master in 2008
Auf die Schwingfestigkeit von hochfesten Blindnietverbindungen " (research projects：AiF-
Nr.：A kind of friction-test instrument has shown and described in 14577N), the clamping of blind riveting can be measured using the friction-test instrument
Power.Although the measurement on friction-test instrument is the established method for determining the clamping force of blind riveting, this method
It is more than what is used in practice academicly.Although original company can be examined in principle in mentioned friction-test instrument
Connect, but sample must have specific default shape, so that these samples and testing stand match.To with friction test platform
The inspection for measuring the unmatched component of stent or the blind riveting on sample had been impossible at that time.
The content of the invention
Therefore the task of the present invention is, is independently realized to riveting, especially with the concrete shape of riveting, especially blind riveting
It is the quick and simple inspection of blind riveting.
The task by for determining that the method for riveting, the especially clamping force of blind riveting solves, wherein, the riveting is logical
Cross the rivet with manufactured head and strained rivet tail to form, this method has following steps：Apply a torque on rivet；
And the torque of the definite rivet, especially starting torque.
The present invention is based on following understanding：Can as torque and the rivet behavior as caused by the torque being applied on rivet
To be inferred to the clamping force of rivet.It can especially make the torque that rivet starts to rotate in connected component (so-called " to begin
Dynamic torque ") it is concerned.The axial clamping force of rivet can be determined by the torque in the case where recognizing friction coefficient.Can
Selection of land, can be by making the further anti-intensity for pushing away riveting of measurement of resistance that riveting resistance rotates.If it can be confirmed that applying
Rivet does not rotate during predetermined torque, then this for it is simple examine, for example may be just enough in terms of quality assurance.
This can be construed to sufficiently tight riveting.
The major advantage of the method for the present invention is, it is not necessary to the complicated external measurement device being applied in riveting.Pass through
The present invention, clamping force in original riveting first can be directly on connected component, be also determined in the car.Because
Since the geometry of each component and material property perhaps different because of component (such as strengthening region when plate shapes, are adding
Fiber-matrix proportionate relationship of the man-hour in fibrous composite), the clamping force of the clamping force of original connection and the sample of plane
It is different, it is possible to determine actual clamping force by directly measuring over the original connection.
The first scheme of method according to the present invention, is applying torque on the manufactured head of rivet.
According to alternative plan, it is applying torque on the rivet tail of rivet, if the side of riveting can preferably reach
If.
The general torque spanner that torque can by force closure be coupled on rivet by simple mode determines.
In this regard, torque spanner is preferably coupled on rivet by the instrument acted on rivet.
Other features and advantages of the present invention are by subsequently illustrating and being drawn by relevant attached drawing.
Brief description of the drawings
Unique attached drawing schematically shows the sectional side view of blind riveting.
Embodiment
The riveting illustrated in figure be blind riveting 10, first component 12 and second component 14 by the blind riveting that
This is connected.In a known way blind riveting 10 is made using blind rivet 16：Blind rivet 16 is passed through into pair in two components 12,14
Neat hole, and each component 12,14 is forced together by the manufactured head 18 by extruding blind rivet 16.Followed by blind rivet pincers or
Other suitable instruments pull out the nail rod prominent on manufactured head 18 of blind rivet 16 against direction of insertion, this causes blind riveting
Nail 16 deformation, more specifically cause blind rivet 16 the rear jumping-up in the hole of second component 14 and thus expand.Blind rivet
16 parts protruded at the rear in the hole of second component 14 are referred to as rivet tail 20.At the end of the process, nail rod is in rivet
It is broken on the specified fracture position in internal portion so that the remainder of nail rod is prominent not from blind rivet 16.
In order to be inferred to the clamping force of blind rivet 16 in the axial direction in the case of this original blind riveting 10, then survey
Amount is so that blind rivet 16 rotates required torque relative to longitudinal axis A of each component around blind rivet 16.The torque herein should
It is referred to as starting torque.Can be by the understanding of friction coefficient by the anti-clamping force for releasing blind rivet 16 of the torque measured.
Other inferences can also be therefrom obtained if necessary：Blind riveting 10 resisted after initiating rotation resistance have it is more
Greatly.
Alternatively, if blind rivet 16 does not rotate when applying predetermined torque, this can be considered as enough may be used
The mark of the blind riveting 10 leaned on.
In order to determine torque, torque spanner is coupling on manufactured head 18 or in blind riveting in locking manner via suitable tool force
On 10 strained rivet tail 20.
The present invention is illustrated by taking blind riveting 10 as an example, but is not limited to the applicable cases.The method in principle
It can be used in the case of other rivetings, the rivet of other rivetings with the protrusion that can utilize suitable instrumental purpose
Part.
Claims (6)
1. the method for the clamping force for determining riveting, wherein, the riveting is by with manufactured head and strained rivet upsetting
The rivet of head is formed, and this method has following steps：
Apply a torque on rivet, wherein, the torque is that rivet can be made to start the initiating rotated in connected component
Torque；And
Determine the torque of the rivet；
The clamping force of rivet is determined by identified torque in the case where recognizing friction coefficient.
2. in accordance with the method for claim 1, it is characterised in that the torque is applied on the manufactured head of rivet.
3. in accordance with the method for claim 1, it is characterised in that the torque is applied on the rivet tail of rivet.
4. according to the method described in any one of claims 1 to 3, it is characterised in that the torque by means of force closure coupling
The torque spanner on rivet is closed to determine.
5. in accordance with the method for claim 4, it is characterised in that the torque spanner is by acting on the instrument coupling on rivet
Close on rivet.
6. in accordance with the method for claim 1, it is characterised in that this method is used for the clamping force for determining blind riveting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014206373.6 | 2014-04-03 | ||
| DE102014206373.6A DE102014206373B4 (en) | 2014-04-03 | 2014-04-03 | Procedure for determining the clamping force of a riveted joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104977107A CN104977107A (en) | 2015-10-14 |
| CN104977107B true CN104977107B (en) | 2018-05-04 |
Family
ID=54146342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510147609.6A Active CN104977107B (en) | 2014-04-03 | 2015-03-31 | Method for the clamping force for determining riveting |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104977107B (en) |
| DE (1) | DE102014206373B4 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120341A (en) * | 2017-06-07 | 2017-09-01 | 乐山市同源科技有限公司 | Sheet material variation riveting |
| CN108827614B (en) * | 2018-06-26 | 2020-03-20 | 上汽通用汽车有限公司 | Testing device and testing method for detecting performance of belt pulley bolt |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4401134C2 (en) | 1994-01-17 | 1997-08-28 | Infert Innovative Fertigungste | Procedures for monitoring the processing of blind fasteners |
| DE102005048384B3 (en) | 2005-10-10 | 2007-01-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Force fit controlling device, e.g. for connection of two bodies, has two laminar construction units arranged flat one on top of other and surface of construction units has pressure sensor arranged using thin-film technology |
| SE532792C2 (en) * | 2007-07-13 | 2010-04-13 | Atlas Copco Tools Ab | Power tool controller |
| WO2010047638A1 (en) * | 2008-10-22 | 2010-04-29 | Atlas Copco Tools Ab | A test method and tool for testing fastened fasteners |
| DE102009035892A1 (en) | 2009-08-03 | 2011-02-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for clamping force determination on a mechanical joining connection connecting at least two components |
| KR101013340B1 (en) * | 2010-06-14 | 2011-02-10 | 한국전력공사 | Digital device and method to estimate tension of torque-shear typed high strength |
| DE102012012013A1 (en) | 2012-06-16 | 2012-12-13 | Daimler Ag | Method for determination of strength of RIVTAC connection between metal sheets, involves exerting test forces on end region of joining element and region of component, and increasing forces until joining element is fed from component |
-
2014
- 2014-04-03 DE DE102014206373.6A patent/DE102014206373B4/en active Active
-
2015
- 2015-03-31 CN CN201510147609.6A patent/CN104977107B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104977107A (en) | 2015-10-14 |
| DE102014206373A1 (en) | 2015-10-08 |
| DE102014206373B4 (en) | 2022-09-08 |
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