CN104977107A - Method for determining clamping force of riveting - Google Patents
Method for determining clamping force of riveting Download PDFInfo
- Publication number
- CN104977107A CN104977107A CN201510147609.6A CN201510147609A CN104977107A CN 104977107 A CN104977107 A CN 104977107A CN 201510147609 A CN201510147609 A CN 201510147609A CN 104977107 A CN104977107 A CN 104977107A
- Authority
- 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
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- 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
Abstract
The invention relates to a method for determining clamping force of riveting, especially blind riveting, wherein the riveting is implemented with a rivet with a rivet head and a deformed rivet tail. The method is as follows: applying a torque to the rivet, determining the torque of the rivet, especially start torque.
Description
Technical field
The present invention relates to a kind of method for determining the clamping force of riveting.
Background technology
Rivet is mainly used in unremovably attaching plate elements, and rivet has the following advantages relative to screw tool: need not process screw thread in component.Be different from common riveted joint, only need to enter the component that will connect from side when blind riveting for connection procedure.
It is important for determining that the clamping force of riveted joint, especially blind riveting is especially monitored for evaluation strength of joint and riveting quality in batch becomes to produce.
The riveted joint that shape is sealed can be visually identified in principle by strained rivet tail.But the quality of riveted joint, namely actual intensity only can be determined on special testing table.But by original connection can not be measured in principle by the measurement mechanism that prior art is known, because always the part of measurement mechanism, such as measurement dish often must be clamped in the connection that will check together.
The Ortwin doctor Hahn professor in handkerchief moral Berne University material and interconnection technique laboratory and Mathias Heger master are shown in the final report " Ermittlung des Einfluss vonverbleibender Klemmkraft auf die Schwingfestigkeit von hochfestenBlindnietverbindungen " (research project: AiF-Nr.:14577N) of 2008 and describe a kind of friction-test instrument, utilize this friction-test instrument can measure the clamping force of blind riveting.Although the measurement on friction-test instrument is the method set up of the clamping force for determining blind riveting, the method is more than what use in practice academicly.Although can check original connection in mentioned friction-test instrument in principle, sample must have the specific shape preset, so that these samples and testing table match.To being impossible in the inspection with the blind riveting on the unmatched component of measurement support or sample of friction test platform at that time.
Summary of the invention
Therefore task of the present invention is, independently realizes riveting, especially the checking fast and simply of blind riveting with riveted joint, the especially concrete shape of blind riveting.
This task is solved by the method for determining riveted joint, the especially clamping force of blind riveting, and wherein, described riveted joint is consisted of the rivet with manufactured head and strained rivet tail, and the method has following steps: apply torque on rivet; And determine the torque of described rivet, especially starting torque.
The present invention is based on being familiar with as follows: the behavior caused by this torque by the torque be applied on rivet and rivet can infer the clamping force of rivet.The torque (so-called " starting torque ") that rivet especially can be made to start to rotate in the component be connected is concerned.Can by the axial clamping force of this torque determination rivet when being familiar with friction factor.Alternatively, can by the measurement anti-intensity pushing away riveted joint further making riveted joint resist the resistance rotated.If can confirm, when applying predetermined torque, rivet does not rotate, then this for simple inspection, such as may be just enough in quality assurance.This can be interpreted as enough firmly riveting.
The major advantage of the inventive method is, does not need the external measurement device of the complexity be applied in riveted joint.By the present invention, the clamping force in original riveted joint can directly be determined first on the component be connected, also in vehicle.Because due to the geometric configuration of each component and perhaps different because of component material behavior (strengthening region such as when plate is shaped, adding the fiber-matrix proportionate relationship of man-hour in fibrous composite), the clamping force of original connection is different from the clamping force of the sample of plane, so can determine actual clamping force by directly measuring over the original connection.
According to the first scheme of the inventive method, be applying torque on the manufactured head of rivet.
This side of riveted joint according to alternative plan, is applying torque on the rivet tail of rivet, if can reach better.
Torque can by simple mode by force closure the general torque spanner be coupled on rivet determine.
To this, torque spanner is coupled on rivet preferably by the instrument acted on rivet.
Other features and advantages of the present invention draw by follow-up explanation with by the accompanying drawing of being correlated with.
Accompanying drawing explanation
Unique accompanying drawing schematically shows the sectional side view of blind riveting.
Embodiment
The riveted joint illustrated in the drawings is blind riveting 10, and the first component 12 and second component 14 are connected with each other by this blind riveting.Utilize blind rivet 16 to make blind riveting 10 in a known way: hole blind rivet 16 being passed in the alignment in two components 12,14, and by the manufactured head 18 of extruding blind rivet 16, each component 12,14 is pressed onto together.Blind rivet pincers or other suitable instruments are utilized to pull out against the nail bar outstanding on manufactured head 18 of direction of insertion by blind rivet 16 subsequently, this causes blind rivet 16 to be out of shape, and causes blind rivet 16 at the rear jumping-up in the hole of second component 14 or rather and thus expands.Blind rivet 16 is called as rivet tail 20 in the part that the rear in the hole of second component 14 is outstanding.At the end of this process, nail bar ruptures on the specified fracture position of shaft of rivet inside, makes the remainder following closely bar not outstanding from blind rivet 16.
In order to infer blind rivet 16 clamping force in the axial direction when this original blind riveting 10, then measure make blind rivet 16 to rotate around the longitudinal axis A of blind rivet 16 relative to each component needed for torque.This torque should be called as starting torque at this.Can by the understanding of friction factor by the anti-clamping force releasing blind rivet 16 of the torque recorded.
Also other inferences can therefrom be obtained if necessary: the resistance that blind riveting 10 resists rotation after initiating has much.
Alternatively, if blind rivet 16 does not rotate when applying predetermined torque, then this can be regarded as the mark of blind riveting 10 enough reliably.
In order to determine torque, torque spanner is coupling on manufactured head 18 or on the strained rivet tail 20 of blind riveting 10 in locking manner via suitable tool force.
The present invention is described for blind riveting 10, but is not limited to this applicable cases.Described method also can use when other are riveted in principle, and other riveted joints described have the outstanding rivet portion that can utilize applicable instrumental purpose.
Claims (5)
1. for determining the method for riveted joint, the especially clamping force of blind riveting, wherein, described riveted joint is consisted of the rivet with manufactured head and strained rivet tail, and the method has following steps:
Apply torque on rivet; And
Determine the torque of described rivet, especially starting torque.
2. in accordance with the method for claim 1, it is characterized in that, described torque is applied on the manufactured head of rivet.
3. in accordance with the method for claim 1, it is characterized in that, described torque is applied on the rivet tail of rivet.
4., according to the method according to any one of claims 1 to 3, it is characterized in that, described torque by means of force closure the torque spanner be coupled on rivet determine.
5. in accordance with the method for claim 4, it is characterized in that, described torque spanner is coupled on rivet by the instrument acted on rivet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014206373.6A DE102014206373B4 (en) | 2014-04-03 | 2014-04-03 | Procedure for determining the clamping force of a riveted joint |
| DE102014206373.6 | 2014-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104977107A true CN104977107A (en) | 2015-10-14 |
| CN104977107B 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) |
Cited By (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 |
| CN108827614A (en) * | 2018-06-26 | 2018-11-16 | 上汽通用汽车有限公司 | It is a kind of for detecting the test device and test method of belt pulley bolt performance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730839A (en) * | 2007-07-13 | 2010-06-09 | 阿特拉斯科普科工具公司 | Regulator for a power tool |
| KR101013340B1 (en) * | 2010-06-14 | 2011-02-10 | 한국전력공사 | Digital device and method to estimate tension of torque-shear typed high strength |
| 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 |
| CN102187190A (en) * | 2008-10-22 | 2011-09-14 | 阿特拉斯·科普柯工具公司 | A test method and tool for testing fastened fasteners |
Family Cites Families (3)
| 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 |
| 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 |
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2014
- 2014-04-03 DE DE102014206373.6A patent/DE102014206373B4/en active Active
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2015
- 2015-03-31 CN CN201510147609.6A patent/CN104977107B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730839A (en) * | 2007-07-13 | 2010-06-09 | 阿特拉斯科普科工具公司 | Regulator for a power tool |
| CN102187190A (en) * | 2008-10-22 | 2011-09-14 | 阿特拉斯·科普柯工具公司 | 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 |
Non-Patent Citations (2)
| Title |
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| 中华人民共和国国家质量监督检验检疫总局等: "紧固件 扭矩-夹紧力试验", 《GB/T 16823.3-2010/ISO 16047：2005》 * |
| 熊云奇: "螺纹紧固件拧紧工艺技术及发展趋势", 《2007中国汽车工程学会年会论文集》 * |
Cited By (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 |
| CN108827614A (en) * | 2018-06-26 | 2018-11-16 | 上汽通用汽车有限公司 | It is a kind of for detecting the test device and test method of belt pulley bolt performance |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014206373B4 (en) | 2022-09-08 |
| DE102014206373A1 (en) | 2015-10-08 |
| CN104977107B (en) | 2018-05-04 |
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