EP1186359A1 - Apparatus for joining metal sheets together - Google Patents
Apparatus for joining metal sheets together Download PDFInfo
- Publication number
- EP1186359A1 EP1186359A1 EP01124550A EP01124550A EP1186359A1 EP 1186359 A1 EP1186359 A1 EP 1186359A1 EP 01124550 A EP01124550 A EP 01124550A EP 01124550 A EP01124550 A EP 01124550A EP 1186359 A1 EP1186359 A1 EP 1186359A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- die
- opening
- joints
- joining point
- anvil
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
Definitions
- the present invention relates to a device for Enforcing overlapping sheet metal parts with one Stamp and an anvil, on which at least two die parts are laterally movably supported, which delimit an opening, so that when the stamp moves into the opening dodge sideways when deforming the sheets and so a Joining point is formed.
- This object can be achieved according to the invention in that the die parts are separated by joints that are not radial run. According to the state of the art, radial ones have always been used Gaps are provided between the die parts. In the backflow process the die parts must move outwards. This creates gaps between the die parts into which the material could dodge, so that at these points proper backflow process did not take place and this Areas did not contribute to the strength of the joining point.
- the Grooves run at an angle to the radial direction.
- the opening of the die has a circular cross-section , it is particularly preferred to add the joints to be arranged tangentially.
- the opening of the die is one has circular cross-section, and the joints in shape from inward curved arches, so that the Opening like an iris can open.
- FIGS. 1 to 5 The matrix arrangement is shown in FIGS. 1 to 5 the prior art is also shown again.
- Figure 1 shows a currently common matrix arrangement consisting of four 300 separate matrix elements with radial joints 313, 314, 315, 316, each a quarter circle form.
- FIG. 2 shows the same arrangement in the open state, i.e. at the end of the backflow if through the flow of the joining point, the matrix elements 313, 314, 315, 316 maximum are dispersed.
- Figure 3 shows a joining point with the matrix device is made according to Figures 1 and 2, in plan view. It it is clearly recognizable that the joining point is not complete is round, but in the places where the individual matrix elements Bump 313 to 316 through the gap Has 300 recesses caused.
- FIG. 4 shows a section through the joining point of the figure 3 along the line A-A. As you can see, there is the undercut there good and the joining point therefore seems to have good strength values exhibit.
- the present invention teaches the corresponding column 300 is not radial (in the direction of flow of the backflow process).
- a a particularly preferred embodiment is shown in FIG. 6.
- the joints 400 are between the individual Matrix elements 413 to 416 arcuate, so that even when the die is expanded due to the backflow process cannot form columns because the individual matrix elements 413 to 416 move apart without gaps can, as shown in Figure 7.
- FIG. 9 shows a sectional illustration through the die anvil arrangement for a die shape according to Figure 8.
- the anvil 412 is also wider here than the maximum width of the joining point executed.
- the L-shaped die elements 414 and 416 are attached to the side surfaces of the anvil. she are movable by a spring ring 420 and spring back elastically held in place.
- the present invention can be done by a less complex Modification of the anvil-matrix arrangement a considerably better strength of the joining points can be achieved without for this additional work steps in the clinching process would be required.
Abstract
Zur Verbesserung der Festigkeit der Fügepunkte wird eine Vorrichtung zum Durchsetzfügen von sich überlappenden Blechteilen mit einem Stempel und einem Amboß vorgeschlagen, an dem mindestens zwei Matrizenteile seitlich beweglich abgestützt sind, die eine Öffnung begrenzen, so daß sie bei einer Bewegung des Stempels in die Öffnung beim Verformen der Bleche seitlich ausweichen und so ein Fügepunkt gebildet wird, wobei die Matrizenteile durch Fugen getrennt sind, die nicht radial verlaufen. <IMAGE>To improve the strength of the joining points, a device for pushing through overlapping sheet metal parts with a punch and an anvil is proposed, on which at least two die parts are laterally movably supported, which delimit an opening, so that when the punch moves into the opening when Dodge the sheets laterally and form a joining point, the die parts being separated by joints that do not run radially. <IMAGE>
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zum Durchsetzfügen von sich überlappenden Blechteilen mit einem Stempel und einem Amboß, an dem mindestens zwei Matrizenteile seitlich beweglich abgestützt sind, die eine Öffnung begrenzen, so daß sie bei einer Bewegung des Stempels in die Öffnung beim Verformen der Bleche seitlich ausweichen und so ein Fügepunkt gebildet wird.The present invention relates to a device for Enforcing overlapping sheet metal parts with one Stamp and an anvil, on which at least two die parts are laterally movably supported, which delimit an opening, so that when the stamp moves into the opening dodge sideways when deforming the sheets and so a Joining point is formed.
Bei allen bisher bekannten Verfahren und Vorrichtungen zum Durchsetzfügen besteht das Problem, daß eine möglichst starke Hinterschneidung des stempelseitigen Bleches an der amboßseitigen Außenkante des Fügepunktes erzielt werden muß, damit der Fügepunkt die erforderliche Festigkeit erreicht.In all previously known methods and devices for Enforcing there is the problem that the strongest possible Undercut of the stamp-side sheet on the anvil-side Outside edge of the joining point must be achieved so the joining point reaches the required strength.
Die Vorrichtungen zum Durchsetzfügen gemäß dem Stand der Technik (beispielsweise U.S.-Patent 4 910 853) wiesen bisher einen Amboß auf, der einen nur wenig größeren Durchmesser als der Stempel besaß. Der Amboß war dabei von den in Bewegungsrichtung des Stempels länglich ausgebildeten Matrizenteilen umgeben, die während des Hinterfließvorgangs, durch den die Hinterschneidung gebildet wurde, vom Amboß abgespreizt wurden. Dadurch konnte das Material des Fügepunktes jedoch entlang der Außenseite des Ambosses nach unten fließen. Die Hinterschneidungen blieben somit verhältnismäßig klein und die Festigkeit des Fügepunktes unzureichend.The devices for clinching according to the state of the Techniques (e.g. U.S. Patent 4,910,853) have previously been disclosed an anvil that is only slightly larger in diameter than the stamp had. The anvil was of those in the direction of movement of the stamp elongated die parts surrounded by the backflow, by which the Undercut was formed, spread from the anvil. This, however, allowed the material along the joining point flow down the outside of the anvil. The undercuts thus remained relatively small and Insufficient strength of the joining point.
Um diesem Problem abzuhelfen, wurden im Stand der Technik bereits mehrstufige Durchsetzfügeverfahren vorgeschlagen, bei denen der Fügepunkt nach dem Durchsetzen nochmals gestaucht wurde. Dieses mehrstufige Durchsetzfügen ist jedoch nur mit einer sehr komplizierten Vorrichtung realisierbar und erfordert eine große Anzahl Arbeitsschritte.To remedy this problem, the prior art has already been multi-stage enforcement joining proposed at to which the joining point is compressed again after enforcement has been. This multi-stage enforcement is only with a very complicated device can be realized and required a large number of work steps.
Es ist daher Aufgabe der vorliegenden Erfindung, eine Vorrichtung zum Durchsetzfügen zu schaffen, die ohne zusätzlichen apparativen Aufwand bei der Fügevorrichtung und ohne zusätzliche Bearbeitungsschritte eine bessere Festigkeit der Fügepunkte bewirkt.It is therefore an object of the present invention to provide a device to enforce that without creating additional apparatus expenditure for the joining device and without additional Machining steps a better strength of the Joining points.
Diese Aufgabe kann erfindungsgemäß dadurch gelöst werden, daß die Matrizenteile durch Fugen getrennt sind, die nicht radial verlaufen. Gemäß dem Stand der Technik wurden stets radiale Fugen zwischen den Matrizenteilen vorgesehen. Beim Hinterfließvorgang müssen die Matrizenteile nach außen ausweichen. Dadurch entstehen Spalten zwischen den Matrizenteilen, in die das Material ausweichen konnte, so daß an diesen Stellen ein ordnungsgemäßer Hinterfließvorgang nicht stattfand und diese Bereiche nicht zur Festigkeit des Fügepunktes beitrugen.This object can be achieved according to the invention in that the die parts are separated by joints that are not radial run. According to the state of the art, radial ones have always been used Gaps are provided between the die parts. In the backflow process the die parts must move outwards. This creates gaps between the die parts into which the material could dodge, so that at these points proper backflow process did not take place and this Areas did not contribute to the strength of the joining point.
Zur Lösung dieser Aufgabe ist es besonders bevorzugt, daß die Fugen schräg zu der Radialrichtung verlaufen.To achieve this object, it is particularly preferred that the Grooves run at an angle to the radial direction.
Sofern die Öffnung der Matrize einen kreisförmigen Querschnitt aufweist, ist es besonders bevorzugt, die Fugen dazu tangential anzuordnen.If the opening of the die has a circular cross-section , it is particularly preferred to add the joints to be arranged tangentially.
Besonders bevorzugt ist es, wenn die Öffnung der Matrize einen kreisförmigen Querschnitt aufweist, und die Fugen in Form von nach innen gekrümmten Bögen verlaufen, so daß sich die Öffnung wie eine Iris-Blende öffnen kann. Bei dieser Lösung entstehen überhaupt keine Spalten und damit ergibt sich ein über den ganzen Umfang des Fügepunktes gleichmäßiger Hinterfließvorgang. Die Hinterschneidung ist überall gleich stark und fest.It is particularly preferred if the opening of the die is one has circular cross-section, and the joints in shape from inward curved arches, so that the Opening like an iris can open. With this solution there are no columns at all and this results in a Uniform backflow process over the entire circumference of the joining point. The undercut is equally strong everywhere and firm.
Die vorliegende Erfindung wird nun anhand der in den Zeichnungen
dargestellten Ausführungsbeispiele näher erläutert. Es
zeigen:
Zum Verständnis der erfindungsgemäßen Lösung mit der "irisblendenförmigen"
Matrizenanordnung ist in den Figuren 1 bis 5
ebenfalls wieder der Stand der Technik dargestellt. Figur 1
zeigt eine derzeit übliche Matrizenanordnung, die aus vier
durch radial verlaufende Fugen 300 getrennten Matrizenelementen
313, 314, 315, 316 besteht, die jeweils einen Viertelkreis
bilden.To understand the solution according to the invention with the "iris-shaped"
The matrix arrangement is shown in FIGS. 1 to 5
the prior art is also shown again. Figure 1
shows a currently common matrix arrangement consisting of four
300 separate matrix elements with
Figur 2 zeigt die gleiche Anordnung im geöffneten Zustand,
d.h. am Ende des Hinterfließvorgangs, wenn durch das Fließen
des Fügepunkts die Matrizenelemente 313, 314, 315, 316 maximal
auseinandergetrieben sind. FIG. 2 shows the same arrangement in the open state,
i.e. at the end of the backflow if through the flow
of the joining point, the
Figur 3 zeigt einen Fügepunkt, der mit der Matrizenvorrichtung
gemäß Figur 1 und 2 hergestellt ist, in Draufsicht. Es
ist deutlich erkennbar, daß der Fügepunkt nicht vollständig
rund ist, sondern an den Stellen, an denen die einzelnen Matrizenelemente
313 bis 316 aneinander stoßen, durch die Spalte
300 verursachte Ausnehmungen aufweist.Figure 3 shows a joining point with the matrix device
is made according to Figures 1 and 2, in plan view. It
it is clearly recognizable that the joining point is not complete
is round, but in the places where the individual
Wie aus den Figuren 4 und 5 ersichtlich, führen diese Ausnehmungen zu einer erheblichen Verminderung der Festigkeit des Fügepunktes.As can be seen from Figures 4 and 5, these recesses to a significant reduction in the strength of the Joining point.
Die Figur 4 zeigt einen Schnitt durch den Fügepunkt der Figur 3 entlang der Linie A-A. Wie ersichtlich, ist dort die Hinterschneidung gut und der Fügepunkt scheint somit gute Festigkeitswerte aufzuweisen.FIG. 4 shows a section through the joining point of the figure 3 along the line A-A. As you can see, there is the undercut there good and the joining point therefore seems to have good strength values exhibit.
Schneidet man jedoch entlang der Linie B-B der Figur 3, wie dies in Figur 5 dargestellt ist, wobei der Schnitt also dann durch die durch die Spalte 300 gebildeten Ausnehmungen des Fügepunktes verläuft, so erkennt man aus Figur 5, daß hier fast keine Hinterschneidung gebildet worden ist. Diese Bereiche des Fügepunktes tragen somit nicht zur Festigkeit bei. Dem gemäß dem Stand der Technik hergestellten Fügepunkt fehlt daher ein erheblicher Teil der theoretisch erreichbaren maximalen Festigkeit.However, one cuts along the line B-B of Figure 3 as this is shown in Figure 5, the section then by the recesses of the Joining point runs, it can be seen from Figure 5 that here almost no undercut has been formed. These areas the joining point therefore do not contribute to the strength. The joining point produced according to the prior art is missing therefore a significant part of the theoretically achievable maximum Strength.
Um diesem Übelstand abzuhelfen, lehrt die vorliegende Erfindung,
die entsprechenden Spalte 300 nicht radial (in Fließrichtung
des Hinterfließvorgangs) verlaufen zu lassen. Eine
besonders bevorzugte Ausführungsform ist in Figur 6 dargestellt.
Hierbei sind die Fugen 400 zwischen den einzelnen
Matrizenelementen 413 bis 416 bogenförmig ausgebildet, so daß
sich auch beim Auftreiben der Matrize durch den Hinterfließvorgang
keine Spalten bilden können, da die einzelnen Matrizenelemente
413 bis 416 ohne Spaltenbildung auseinander wandern
können, wie dies in Figur 7 dargestellt ist. To remedy this problem, the present invention teaches
the
Da sich bei dieser erfindungsgemäßen Lösung keine Spalten
zwischen den einzelnen Matrizenelementen bilden können, ist
auch eine vereinfachte Anordnung gemäß Figur 8 mit nur zwei
Matrizenelementen 414, 416 möglich. Selbstverständlich funktioniert
diese Anordnung auch mit einer anderen Anzahl von
Matrizenelementen. Bei mehr als fünf Matrizenelementen dürfte
die Konstruktion jedoch zu aufwändig werden.Since there are no gaps in this solution according to the invention
can form between the individual matrix elements is
also a simplified arrangement according to FIG. 8 with only two
Figur 9 zeigt eine Schnittdarstellung durch die Matrizen-Amboßanordnung
für eine Matrizenform gemäß Figur 8. Der Amboß
412 ist hier ebenfalls breiter als die Maximalbreite des Fügepunktes
ausgeführt. Die L-förmigen Matrizenelemente 414 und
416 sind an den Seitenflächen des Ambosses angebracht. Sie
werden durch einen Federring 420 bewegbar und elastisch zurückfedernd
in ihrer Position gehalten.FIG. 9 shows a sectional illustration through the die anvil arrangement
for a die shape according to Figure 8. The
Durch die vorliegende Erfindung kann durch eine wenig aufwändige Abwandlung der Amboß-Matrizenanordnung eine erheblich bessere Festigkeit der Fügepunkte erzielt werden, ohne daß hierfür zusätzliche Arbeitsschritte beim Durchsetzfügevorgang erforderlich wären.The present invention can be done by a less complex Modification of the anvil-matrix arrangement a considerably better strength of the joining points can be achieved without for this additional work steps in the clinching process would be required.
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29700868U | 1997-01-21 | ||
DE29700868U DE29700868U1 (en) | 1997-01-21 | 1997-01-21 | Push through device |
EP98100247A EP0853990B1 (en) | 1997-01-21 | 1998-01-09 | Apparatus for joining metal sheets together |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98100247A Division EP0853990B1 (en) | 1997-01-21 | 1998-01-09 | Apparatus for joining metal sheets together |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1186359A1 true EP1186359A1 (en) | 2002-03-13 |
EP1186359B1 EP1186359B1 (en) | 2003-10-22 |
Family
ID=8034762
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98100247A Expired - Lifetime EP0853990B1 (en) | 1997-01-21 | 1998-01-09 | Apparatus for joining metal sheets together |
EP01124550A Expired - Lifetime EP1186359B1 (en) | 1997-01-21 | 1998-01-09 | Apparatus for joining metal sheets together |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98100247A Expired - Lifetime EP0853990B1 (en) | 1997-01-21 | 1998-01-09 | Apparatus for joining metal sheets together |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP0853990B1 (en) |
AT (2) | ATE252430T1 (en) |
DE (3) | DE29700868U1 (en) |
ES (2) | ES2210083T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013200776A1 (en) * | 2012-01-20 | 2013-07-25 | Profil Verbindungstechnik Gmbh & Co. Kg | A method of making a hole in a composite component |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19929375B4 (en) * | 1999-06-25 | 2008-07-24 | Tox Pressotechnik Gmbh & Co. Kg | Method, apparatus and tool unit for clinching |
ATE386598T1 (en) * | 2000-04-05 | 2008-03-15 | Tox Pressotechnik Gmbh | METHOD FOR PRODUCING A PULL-FULL JOINT |
DE102014205951B4 (en) | 2014-03-31 | 2021-03-04 | Bayerische Motoren Werke Aktiengesellschaft | Method for reworking a defective clinch connection and method for producing a clinch connection with reworking, as well as workpiece assembly with at least one reworked clinch connection |
DE102019108902A1 (en) * | 2019-04-04 | 2020-10-08 | Benteler Automobiltechnik Gmbh | Battery tray with clinch connection |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581860A (en) * | 1980-09-08 | 1996-12-10 | Btm Corporation | Apparatus for joining sheet material |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56114536A (en) * | 1980-02-13 | 1981-09-09 | Toshiba Corp | Joining device of sheet material |
DE3261709D1 (en) * | 1981-10-28 | 1985-02-07 | Eckold Vorrichtung | Apparatus for making a riveted joint of metal sheets |
DE3613324A1 (en) * | 1986-04-19 | 1987-10-22 | Eugen Rapp | Method and device for connecting thin plates |
DE3836937A1 (en) * | 1988-10-29 | 1990-05-03 | Eckold Vorrichtung | ENFORCEMENT DEVICE |
US5528815A (en) * | 1990-04-03 | 1996-06-25 | Webb; Edward L. T. | Clinching tool for sheet metal joining |
JP2529818B2 (en) * | 1994-07-29 | 1996-09-04 | ナショナル住宅産業株式会社 | Work coupling device |
-
1997
- 1997-01-21 DE DE29700868U patent/DE29700868U1/en not_active Expired - Lifetime
-
1998
- 1998-01-09 DE DE59803891T patent/DE59803891D1/en not_active Expired - Fee Related
- 1998-01-09 ES ES01124550T patent/ES2210083T3/en not_active Expired - Lifetime
- 1998-01-09 EP EP98100247A patent/EP0853990B1/en not_active Expired - Lifetime
- 1998-01-09 ES ES98100247T patent/ES2176818T3/en not_active Expired - Lifetime
- 1998-01-09 AT AT01124550T patent/ATE252430T1/en not_active IP Right Cessation
- 1998-01-09 EP EP01124550A patent/EP1186359B1/en not_active Expired - Lifetime
- 1998-01-09 AT AT98100247T patent/ATE216641T1/en not_active IP Right Cessation
- 1998-01-09 DE DE59809985T patent/DE59809985D1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581860A (en) * | 1980-09-08 | 1996-12-10 | Btm Corporation | Apparatus for joining sheet material |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013200776A1 (en) * | 2012-01-20 | 2013-07-25 | Profil Verbindungstechnik Gmbh & Co. Kg | A method of making a hole in a composite component |
US10759077B2 (en) | 2012-01-20 | 2020-09-01 | Profil Verbindungstechnik Gmbh & Co. Kg | Method for the manufacture of a hole in a component consisting of a composite material |
Also Published As
Publication number | Publication date |
---|---|
DE29700868U1 (en) | 1997-05-15 |
EP1186359B1 (en) | 2003-10-22 |
EP0853990A3 (en) | 1998-09-23 |
ATE216641T1 (en) | 2002-05-15 |
EP0853990B1 (en) | 2002-04-24 |
ATE252430T1 (en) | 2003-11-15 |
DE59803891D1 (en) | 2002-05-29 |
ES2210083T3 (en) | 2004-07-01 |
ES2176818T3 (en) | 2002-12-01 |
DE59809985D1 (en) | 2003-11-27 |
EP0853990A2 (en) | 1998-07-22 |
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