EP1468758B1 - Die for a tool set for mechanical joining - Google Patents
Die for a tool set for mechanical joining Download PDFInfo
- Publication number
- EP1468758B1 EP1468758B1 EP04007512A EP04007512A EP1468758B1 EP 1468758 B1 EP1468758 B1 EP 1468758B1 EP 04007512 A EP04007512 A EP 04007512A EP 04007512 A EP04007512 A EP 04007512A EP 1468758 B1 EP1468758 B1 EP 1468758B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- die
- segments
- anvil
- sleeve
- die according
- 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 - Lifetime
Links
- 230000000284 resting effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 8
- 230000036316 preload Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49833—Punching, piercing or reaming part by surface of second part
- Y10T29/49835—Punching, piercing or reaming part by surface of second part with shaping
Definitions
- the invention relates to a die for a tool set for mechanical Joining according to the preamble of claim 1.
- a tool set for producing joints is plate-shaped parts known, the first upper tool part with a Stamp and a second lower tool part having a round die.
- the female part has an anvil with an anvil body on which annular element with a head-side sliding surface and a bottom side Pad are provided.
- Single, surrounding the anvil, Ring-segment-shaped die segments have recesses for a concentric, a longitudinal movement of the die segments allowing flanges thereof to the annular member, each Matrizensegment on the head-side sliding surface under spring preload slidably supported, including an elastic means the Matrizensegmente the lateral surface of the anvil applies.
- the disadvantage here is that the die segments due to their unfavorable Ratio of height to radial extent tipping rather than tilt radial slide and thereby cant and thereby jam.
- the support of the die segments on the anvil body decreases in size the longitudinal outward movement, since the die segments from the Lead at least partially run out.
- An increased Risk of breakage of Matrizengrund stressess is the result.
- the lifetimes of a such matrix are therefore low.
- the annular element requires the anvil body an increased height, whereby the accessibility to Joint in shaft-like components is severely limited.
- WO 01/36124 A2 is a generic tool set for manufacturing known from joints on plate-shaped parts, comprising a round die. Individual, the anvil surrounding ring-shaped die segments are against a spring bias to the outside displaced on a support surface arranged. The radial displaceability of the die segments to the outside becomes limited by a the support surface enclosing stop, the a Matrizenhülse is formed. The stop is also used to an axial Movement of the die segments in their displacement to the outside prevent what this projecting guides, the in Engage undercuts of the die segments. The disadvantage is again, in that the die segments tilt relative to the projecting guides and thereby jam.
- a round die includes.
- the die has four die segments, that of a housing are surrounded.
- the housing is equipped with oblong holes, with between two slots each pin extend into the interior of the housing. These pins engage in grooves formed on the die segments.
- edges of the die segments in the slots of the Matrizengephaseuses movable wherein the engaging in the die segments Counteract pins of a rotational movement of the die segments.
- the object of the invention is therefore to provide a die for a tool set for mechanical joining according to the preamble of claim 1 to provide has a long service life and is compact in construction.
- a die for a tool set for mechanical joining created, the die segments each have a guideway in the Assigning template sleeve.
- the die segments are supported at their radially to Anvil directed displacement on a support surface of the Matrizengrund stressess and receive an additional direct guide through the Die segment sections which slideably engage the die sleeve.
- Such a die is in terms of die height and die diameter built compact and has improved guiding properties for the sliding die segments on.
- the die sleeve preferably has the die sleeve wall completely piercing breakthroughs, in which the die segments with one each Intervene extension.
- the radial displacement of the die segments lies within the segment guides and thus does not lead to increased expansion of the tool in the radial direction. It is also advantageous that dirt can be discharged from the die, which further their service life be improved.
- the segment guides in the die sleeve form closed guides that allowing sliding of the die segments radially to the anvil and at the same time limit axial displacement of the same.
- the in the art required undercuts on the die segments for securing the same against axial displacement of the support surface can be omitted.
- the Matrizensegmente and thus the entire matrix can consequently a lesser have axial height. That reduced compared to the prior art Ratio of axial to radial extent of Matrizensegmente leads at the same time to a greater stability against tilting during the radial Shifting.
- the die is round and has a die sleeve with in Circumferentially extending and on a contour line opposite the Support surface arranged guideways.
- the die segments are then preferably formed as annular sections, preferably at least three Matrizensegmente are provided. Particularly preferred are four to six Matrizensegmente provided to minimize the spatial extent of joints between the die segments in the expanded state to reach.
- the spring bias is by an elastic ring, the in particular may be a metal spring exerted.
- the die segments each have a in Having circumferentially extending groove.
- Figs. 1 to 5 show a first embodiment of a die 1 for a Tool set for the mechanical joining of sheet metal on one another by forming with at least one stamp (not shown) and a Die 1.
- the die 1 defines a cavity 2 (see Fig. 4) in the inside is added.
- the die 1 comprises for this purpose an anvil 3 with a head-side Anvil surface against which the stamp is movable.
- At the anvil are 3 individual cavity segments 9 delimiting the cavity 2 in the circumferential direction. 9 provided that the feed of the punch in the direction of the anvil 3 a Evasive movement transverse to an axial extension of the anvil 3 and thus Run transversely to the punch feed direction.
- the die 1 comprises to preferably designed as a straight circular cylinder anvil 3, the a Matrizengrund stresses 7 is formed.
- MatrizengrundMech 7 On the Matrizen groundMech 7 is concentric with the anvil 3 is a flat Provided support surface 4, opposite to the anvil 3 with a selectable height protrudes, and which forms a sliding surface for the die segments 9. Die Support surface 4 is preferably perpendicular to an outer circumferential surface of the Anvil 3 arranged. The support surface 4 is preferably on the MatrizengroundMech 7 provided with an arranged in the center anvil 3.
- the at Advance of the punch in the direction of the anvil 3 an evasive movement across to perform the punch feed direction, including the Matrizensegmente 9 against a spring preload are displaced outwards. After spreading the Matrizensegmente 9 then closes the die 1 then again independently.
- a spring element 5 is an annular spring. Versus which are acting in the direction of the anvil 3 spring force of the spring element 5 the die segments 9 displaced outwards.
- the die 1 further comprises a die sleeve 8, which is the Matrizengrund stresses 7 circumferentially encased.
- the die sleeve 8 has in the circumferential direction, a Division in die segments 9 following, individual segment guides 10, the through the die sleeve 8 extending guideways 11 form and in which the die segments 9 as formed with an extension 12 sliders after guided on the outside are displaced fixed.
- the ring part surfaces 13 limit the cavity 2 on the anvil 3 and are formed on a the Anvil 3 facing head 15 of the die segment 9, on which also the Nut 6 is provided for the spring element 5. From the head 15 extends the respective extension 12 of a die segment 9.
- Each die segment 9 of header 15 and extension 12 preferably has a flat bottom surface 14 (see Fig. 5), with which the die segment 9 slidably rests on the support surface 4 and with an anvil. 3 remote projection 12 protrudes into a respective segment guide 10.
- a die segment 9 in the die sleeve 8 engages the Extension 12 of the die segment 9 as a slider in a closed Guide trained segment guide 10 a.
- the segment guides 10 penetrate the female sleeve 8 completely.
- the guideways 11 of Segment guides 10 and the boundary surfaces of the extensions 12 are according to Art matched by sliding guides.
- the extensions 12 include next to the bottom surface 14 of the bottom surface 14 opposite upper side Guide surface 18.
- the bottom surface 14 of a die segment 9 facing surface of the guideway 11 preferably remains out of engagement with the die segment 9. The sliding movement of the die segment 9 with his Bottom surface 14 of the support surface 4 in the die sleeve 8 then takes place reliable on the support surface 4.
- a second embodiment shown in Fig. 6 of the die 1 is a Quick-change closure for attachment of the above-described Die shown on a die holder 19. Intended is a on the Die holder 19 radially to the die sleeve 8 arranged resilient pin 20, the can engage in a radial bore 21 of the die sleeve 8. It is then no screws to be loosened required. Otherwise, the comments apply corresponding to the first embodiment here.
- a threaded pin with pin is provided, which preferably radially by means of a hexagon socket wrench is displaceable, whereby the pin with the radial bore of the die sleeve is coupled or disconnected.
- Fig. 7 shows a previously described die 1 with an alternative attachment.
- MatrizengrundSuper here is an eccentric pin 22 with an internal thread provided, which has an eccentricity between Matrizenmitte and pin center has, in a bore 23 of a die holder 19 used and there with a Fixing screw 24 can be locked.
- the die 1 is secured by means of anti-rotation webs 25th .
- the round anvil 3 described in the embodiments can in Variation of the embodiments have alternative forms.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
Die Erfindung betrifft eine Matrize für einen Werkzeugsatz zum mechanischen
Fügen nach dem Oberbegriff des Anspruchs 1.The invention relates to a die for a tool set for mechanical
Joining according to the preamble of
Aus der EP 0 779 843 B1 ist ein Werkzeugsatz zum Herstellen von Fügestellen an plattenförmigen Teilen bekannt, der ein erstes oberes Werkzeugteil mit einem Stempel und ein zweites unteres Werkzeugteil mit einer runden Matrize aufweist. Die Matrize besitzt einen Amboß mit einem Amboßkörper, an dem, ein ringförmiges Element mit einer kopfseitigen Gleitfläche und einer bodenseitigen Anschlußfläche vorgesehen sind. Einzelne, den Amboß umgebende, ringabschnittförmige Matrizensegmente besitzen Ausnehmungen für ein konzentrisches, eine längsgerichtete Bewegung der Matrizensegmente erlaubendes Flanschen derselben an das ringförmige Element, wobei jedes Matrizensegment sich an der kopfseitigen Gleitfläche unter Federvorspannung verschiebbar abstützt, wozu eine elastische Einrichtung die Matrizensegmente an die seitliche Fläche des Ambosses anlegt.From EP 0 779 843 B1 a tool set for producing joints is plate-shaped parts known, the first upper tool part with a Stamp and a second lower tool part having a round die. The female part has an anvil with an anvil body on which annular element with a head-side sliding surface and a bottom side Pad are provided. Single, surrounding the anvil, Ring-segment-shaped die segments have recesses for a concentric, a longitudinal movement of the die segments allowing flanges thereof to the annular member, each Matrizensegment on the head-side sliding surface under spring preload slidably supported, including an elastic means the Matrizensegmente the lateral surface of the anvil applies.
Nachteilig dabei ist, daß die Matrizensegmente aufgrund ihres ungünstigen Verhältnisses von Bauhöhe zu radialer Erstreckung eher zum Kippen als zum radialen Gleiten neigen und dabei verkanten und dadurch verklemmen können. Die Abstützung der Matrizensegmente an dem Amboßkörper verkleinert sich bei der längsgerichteten Auswärtsbewegung, da die Matrizensegmente aus der Führung zumindest teilweise herauslaufen. Außerdem muß der Matrizengrundkörper im Amboßbereich hinterschnitten werden, um die Matrizensegmente gegen axiales Verschieben zu sichern. Eine erhöhte Bruchgefahr des Matrizengrundkörpers ist die Folge. Die Standzeiten einer solchen Matrize sind deshalb niedrig. Ferner verlangt das ringförmige Element an dem Amboßkörper eine vergrößerte Bauhöhe, wodurch die Zugänglichkeit zu Fügestellen in schachtartigen Bauteilen stark beschränkt wird.The disadvantage here is that the die segments due to their unfavorable Ratio of height to radial extent tipping rather than tilt radial slide and thereby cant and thereby jam. The support of the die segments on the anvil body decreases in size the longitudinal outward movement, since the die segments from the Lead at least partially run out. In addition, the must Matrizengrundkörper be undercut in the anvil area to the Secure die segments against axial displacement. An increased Risk of breakage of Matrizengrundkörpers is the result. The lifetimes of a such matrix are therefore low. Furthermore, the annular element requires the anvil body an increased height, whereby the accessibility to Joint in shaft-like components is severely limited.
Aus der WO 01/36124 A2 ist ein gattungsgemäßer Werkzeugsatz zum Herstellen von Fügestellen an plattenförmigen Teilen bekannt, der eine Rundmatrize umfaßt. Einzelne, den Amboß umgebende, ringabschnittförmige Matrizensegmente sind gegen eine Federvorspannung nach außen verschiebbar auf einer Stützfläche angeordnet. Die radiale Verschiebbarkeit der Matrizensegmente nach außen wird dabei begrenzt durch einen die Stützfläche ummantelnden Anschlag, der von einer Matrizenhülse gebildet wird. Der Anschlag dient femer dazu, eine axiale Bewegung der Matrizensegmente bei ihrer Verschiebung nach außen zu verhindern, wozu dieser vorspringende Führungen aufweist, die in Hinterschneidungen der Matrizensegmente eingreifen. Nachteilig dabei ist wieder, daß die Matrizensegmente gegenüber den vorspringenden Führungen verkanten und dadurch verklemmen können. From WO 01/36124 A2 is a generic tool set for manufacturing known from joints on plate-shaped parts, comprising a round die. Individual, the anvil surrounding ring-shaped die segments are against a spring bias to the outside displaced on a support surface arranged. The radial displaceability of the die segments to the outside becomes limited by a the support surface enclosing stop, the a Matrizenhülse is formed. The stop is also used to an axial Movement of the die segments in their displacement to the outside prevent what this projecting guides, the in Engage undercuts of the die segments. The disadvantage is again, in that the die segments tilt relative to the projecting guides and thereby jam.
Weiterhin ist aus DE 694 08 080 T2 ein gattungsgemäßer Werkzeugsatz zum Herstellen von Fügestellen an plattenförmigen Teilen bekannt, der eine Rundmatrize umfaßt. Die Matrize weist vier Matrizensegmente auf, die von einem Gehäuse umgeben sind. Das Gehäuse ist mit Langlöchern ausgestattet, wobei zwischen jeweils zwei Langlöchern Zapfen sich in das Innere des Gehäuses erstrecken. Diese Zapfen greifen in Nuten, die an den Matrizensegmenten ausgebildet sind. Bei einer Auswärtsbewegung der Matrizensegmente gegen eine Federvorspannung sind Kanten der Matrizensegmente in die Langlöcher des Matrizengehäuses verfahrbar, wobei die in die Matrizensegmente eingreifenden Zapfen einer Drehbewegung der Matrizensegmente entgegenwirken.Furthermore, from DE 694 08 080 T2 a generic tool set for manufacturing known from joints on plate-shaped parts, a round die includes. The die has four die segments, that of a housing are surrounded. The housing is equipped with oblong holes, with between two slots each pin extend into the interior of the housing. These pins engage in grooves formed on the die segments. In an outward movement of the die segments against a Spring preload are edges of the die segments in the slots of the Matrizengehäuses movable, wherein the engaging in the die segments Counteract pins of a rotational movement of the die segments.
Nachteilig ist hier, daß die Matrizensegmente gegenüber den Langlöchern verkanten können, da die Verschiebung gegen einen Anschlag erfolgt, wobei die Matrizensegmente eine Führung allein durch einseitig angreifende Zapfen erhalten.The disadvantage here is that the Matrizensegmente compared to the oblong holes can tilt, since the displacement takes place against a stop, wherein the Die segments a guide solely by unilaterally attacking pins receive.
Aufgabe der Erfindung ist es daher, eine Matrize für einen Werkzeugsatz zum
mechanischen Fügen nach dem Oberbegriff des Anspruchs 1 zu schaffen, die
eine hohe Standzeit besitzt und dabei kompakt gebaut ist.The object of the invention is therefore to provide a die for a tool set for
mechanical joining according to the preamble of
Diese Aufgabe wird gemäß dem kennzeichnenden Teil des Anspruchs 1 gelöst.This object is achieved according to the characterizing part of
Hierdurch wird eine Matrize für einen Werkzeugsatz zum mechanischen Fügen geschaffen, die den Matrizensegmenten jeweils eine Führungsbahn in der Matrizenhülse zuordnet. Die Matrizensegmente stützen sich bei ihrer radial zum Amboß gerichteten Verschiebung auf einer Stützfläche des Matrizengrundkörpers ab, und erhalten eine zusätzliche direkte Führung durch die Matrizensegmentabschnitte, die in die Matrizenhülse gleitbeweglich eingreifen. Eine solche Matrize ist hinsichtlich Matrizenhöhe und Matrizendurchmesser kompakt gebaut und weist verbesserte Führungseigenschaften für die verschiebbaren Matrizensegmente auf.As a result, a die for a tool set for mechanical joining created, the die segments each have a guideway in the Assigning template sleeve. The die segments are supported at their radially to Anvil directed displacement on a support surface of the Matrizengrundkörpers and receive an additional direct guide through the Die segment sections which slideably engage the die sleeve. Such a die is in terms of die height and die diameter built compact and has improved guiding properties for the sliding die segments on.
Die Matrizenhülse besitzt dazu vorzugsweise die Matrizenhülsenwand vollständig durchdringende Durchbrüche, in die die Matrizensegmente mit jeweils einem Fortsatz eingreifen. Der radiale Verschiebeweg der Matrizensegmente liegt innerhalb der Segmentführungen und führt somit zu keiner erhöhten Ausdehnung des Werkzeugs in radialer Richtung. Vorteilhaft ist darüberhinaus, daß Schmutz aus der Matrize ausgetragen werden kann, wodurch deren Standzeiten weiter verbessert werden.For this purpose, the die sleeve preferably has the die sleeve wall completely piercing breakthroughs, in which the die segments with one each Intervene extension. The radial displacement of the die segments lies within the segment guides and thus does not lead to increased expansion of the tool in the radial direction. It is also advantageous that dirt can be discharged from the die, which further their service life be improved.
Die Segmentführungen in der Matrizenhülse bilden geschlossene Führungen, die ein Gleiten der Matrizensegmente radial zum Amboß erlauben und zugleich ein axiales Verschieben derselben begrenzen. Die im Stand der Technik erforderlichen Hinterschneidungen an den Matrizensegmenten zur Sicherung derselben gegen axiales Verschieben von der Stützfläche können entfallen. Die Matrizensegmente und somit die gesamte Matrize kann folglich eine geringere axiale Bauhöhe besitzen. Das im Vergleich zum Stand der Technik verringerte Verhältnis von axialer zu radialer Erstreckung der Matrizensegmente führt dabei zugleich zu einer größeren Stabilität gegen Kippung während des radialen Verschiebens.The segment guides in the die sleeve form closed guides that allowing sliding of the die segments radially to the anvil and at the same time limit axial displacement of the same. The in the art required undercuts on the die segments for securing the same against axial displacement of the support surface can be omitted. The Matrizensegmente and thus the entire matrix can consequently a lesser have axial height. That reduced compared to the prior art Ratio of axial to radial extent of Matrizensegmente leads at the same time to a greater stability against tilting during the radial Shifting.
Bevorzugt ist die Matrize rund ausgebildet und besitzt eine Matrizenhülse mit in Umfangsrichtung sich erstreckende und auf einer Höhenlinie gegenüber der Stützfläche angeordnete Führungsbahnen. Die Matrizensegmente sind dann vorzugsweise als Ringteilstücke ausgebildet, wobei vorzugsweise mindestens drei Matrizensegmente vorgesehen sind. Besonders bevorzugt sind vier bis sechs Matrizensegmente vorgesehen, um eine möglichst geringe räumliche Ausdehnung von Trennfugen zwischen den Matrizensegmenten im gespreizten Zustand zu erreichen. Preferably, the die is round and has a die sleeve with in Circumferentially extending and on a contour line opposite the Support surface arranged guideways. The die segments are then preferably formed as annular sections, preferably at least three Matrizensegmente are provided. Particularly preferred are four to six Matrizensegmente provided to minimize the spatial extent of joints between the die segments in the expanded state to reach.
Bevorzugt wird die Federvorspannung durch einen elastischen Ring, der insbesondere eine Metallfeder sein kann, ausgeübt. Für eine sichere Aufnahme des elastischen Ringes können die Matrizensegmente jeweils eine in Umfangsrichtung verlaufende Nut aufweisen.Preferably, the spring bias is by an elastic ring, the in particular may be a metal spring exerted. For a safe recording of the elastic ring, the die segments each have a in Having circumferentially extending groove.
Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen.Further embodiments of the invention are the following description and to refer to the dependent claims.
Die Erfindung wird nachstehend anhand der in den beigefügten Abbildungen
dargestellten Ausführungsbeispiele näher erläutert.
Die Fig. 1 bis 5 zeigen ein erstes Ausführungsbeispiel einer Matrize 1 für einen
Werkzeugsatz zum mechanischen Fügen flächig aufeinanderliegender Bleche
durch Umformen mit mindestens einem Stempel (nicht dargestellt) und einer
Matrize 1. Die Matrize 1 begrenzt einen Hohlraum 2 (vgl. Fig. 4) in den hinein
gefügt wird. Die Matrize 1 umfaßt dazu einen Amboß 3 mit einer kopfseitigen
Amboßfläche, gegen die der Stempel verfahrbar ist. An dem Amboß 3 sind
einzelne den Hohlraum 2 in Umfangsrichtung begrenzende Matrizensegmente 9
vorgesehen, die beim Vorschub des Stempels in Richtung zum Amboß 3 eine
Ausweichbewegung quer zu einer axialen Erstreckung des Ambosses 3 und damit
quer zur Stempelvorschubrichtung ausführen. Die Matrize 1 umfaßt dazu
vorzugsweise einen als geraden Kreiszylinder ausgebildeten Amboß 3, der an
einem Matrizengrundkörper 7 ausgebildet ist.Figs. 1 to 5 show a first embodiment of a
An dem Matrizengrundkörper 7 ist konzentrisch zum Amboß 3 eine ebene
Stützfläche 4 vorgesehen, gegenüber der der Amboß 3 mit einer wählbaren Höhe
vorsteht, und die eine Gleitfläche bildet für die Matrizensegmente 9. Die
Stützfläche 4 ist vorzugsweise senkrecht zu einer Außenmantelfläche des
Ambosses 3 angeordnet. Die Stützfläche 4 ist vorzugsweise an dem
Matrizengrundkörper 7 mit einem im Zentrum angeordneten Amboß 3 vorgesehen.On the
Auf der Stützfläche 4 sind mehrere Matrizensegmente 9 angeordnet, die beim
Vorschub des Stempels in Richtung zum Amboß 3 eine Ausweichbewegung quer
zur Stempelvorschubrichtung ausführen, wozu die Matrizensegmente 9 gegen
eine Federvorspannung nach außen verschiebbar sind. Nach einem Spreizen der
Matrizensegmente 9 schließt sich die Matrize 1 dann wieder selbständig.On the support surface 4 a plurality of die segments 9 are arranged, the at
Advance of the punch in the direction of the
Die Federvorspannung erfolgt mittels eines Federelementes 5, das die
Matrizensegmente 9 umgreift, wozu diese jeweils eine in Umfangsrichtung
verlaufende ringförmige Nut 6 aufweisen, die das eine Federkraft ausübende
Federelement 5 aufnimt. Als Federelement 5 bevorzugt ist eine Ringfeder. Gegen
die in Richtung des Ambosses 3 wirkende Federkraft des Federelementes 5 sind
die Matrizensegmente 9 nach außen verschiebbar.The spring preload by means of a
Die Matrize 1 umfaßt weiterhin eine Matrizenhülse 8, die den Matrizengrundkörper
7 umfänglich ummantelt. Die Matrizenhülse 8 weist in Umfangsrichtung, einer
Teilung in Matrizensegmente 9 folgend, einzelne Segmentführungen 10 auf, die
durch die Matrizenhülse 8 erstreckende Führungsbahnen 11 bilden und in denen
die Matrizensegmente 9 als mit einem Fortsatz 12 ausgebildete Gleitstücke nach
außen verschiebbar fixiert geführt sind.The
Die Matrizensegmente 9, die entsprechend einer Teilung als Ringteilstücke
ausgebildet sind, weisen jeweils eine innere gekrümmte Ringteilfläche 13 auf, die
dem Amboß 3 zugewandt ist und im nicht gespreizten Zustand mit der
Außenmantelfläche des Ambosses 3 in Anlage ist. Die Ringteilflächen 13
begrenzen den Hohlraum 2 am Amboß 3 und sind ausgebildet an einem dem
Amboß 3 zugewandten Kopfstück 15 des Matrizensegmentes 9, an dem auch die
Nut 6 für das Federelement 5 vorgesehen ist. Von dem Kopfstück 15 erstreckt sich
der jeweilige Fortsatz 12 eines Matrizensegmentes 9. Während das Kopfstück 15
mit tortenstückartigen, also radial zum Amboß 3 verlaufenden,
gegenüberliegenden seitlichen Randflächen 16 ausgebildet ist, besitzt der Fortsatz
12 parallel zum Amboßradius laufende, gegenüberliegende seitliche Randflächen
17, die bezogen auf die Umfangslinie der Stützfläche 4 auf Sekantenabschnitten
liegen.The die segments 9, which according to a division as ring sections
are formed, each having an inner curved
Jedes Matrizensegment 9 aus Kopfstück 15 und Fortsatz 12 besitzt vorzugsweise
eine ebene Bodenfläche 14 (vgl. Fig. 5), mit der das Matrizensegment 9
gleitverschieblich auf der Stützfläche 4 aufliegt und mit einem dem Amboß 3
abgewandten Fortsatz 12 in jeweils eine Segmentführung 10 hineinragt. Für einen
Führungseingriff eines Matrizensegmentes 9 in der Matrizenhülse 8 greift der
Fortsatz 12 des Matrizensegmentes 9 als Gleitstück in eine als geschlossene
Führung ausgebildete Segmentführung 10 ein. Die Segmentführungen 10
durchdringen die Matrizenhülse 8 vollständig. Die Führungsbahnen 11 der
Segmentführungen 10 und die Begrenzungsflächen der Fortsätze 12 sind nach Art
von Gleitführungen aneinander angepaßt. Die Fortsätze 12 umfassen dazu neben
der Bodenfläche 14 eine der Bodenfläche 14 gegenüberliegende oberseitige
Führungsfläche 18. Die der Bodenfläche 14 eines Matrizensegmentes 9
zugewandte Fläche der Führungsbahn 11 bleibt vorzugsweise außer Eingriff mit
dem Matrizensegment 9. Die Gleitbewegung des Matrizensegmentes 9 mit seiner
Bodenfläche 14 von der Stützfläche 4 in die Matrizenhülse 8 erfolgt dann
zuverlässig auf der Stützfläche 4.Each die segment 9 of
In dem in Fig. 5 dargestellten geschlossenen Zustand der Matrize 1 ragen die
Fortsätze 12 der Matrizensegmente 9 mit einem Endstück bereits in die
zugehörige Segmentführung 10, wodurch ein jedes Matrizensegment 9 in dieser
Grundstellung fixiert geführt ist. Ein axiales Verschieben der Matrizensegmente 9
bei einem Auswärtsgleiten derselben wird damit von Anbeginn eng begrenzt. Die
radiale Länge des Fortsatzes 12 gegenüber dem Kopfstück 15 ist ferner derart
gewählt, daß die beweglichen Matrizensegmente 9 beim Spreizen durch die
Matrizenhülse 8 nicht wegbegrenzt werden. Die Matrizensegmente 9 werden
lediglich gegen die Federvorspannung des Federelementes 5 radial verschoben,
das selbst mit Abstand zur Matrizenhülse 8 angordnet ist und deshalb auch keine
Wegbegrenzung durch die Matrizenhülse 8 erfährt.In the closed state of the
In einem zweiten, in Fig. 6 gezeigten Ausführungsbeispiel der Matrize 1 ist ein
Schnellwechselverschluß für eine Befestigung der vorstehend beschriebenen
Matrize an einem Matrizenhalter 19 dargestellt. Vorgesehen dazu ist ein an dem
Matrizenhalter 19 radial zur Matrizenhülse 8 angeordneter federnder Stift 20, der
in eine radiale Bohrung 21 der Matrizenhülse 8 eingreifen kann. Es sind dann
keine zu lösenden Schrauben erforderlich. Im übrigen gelten die Ausführungen
zum ersten Ausführungsbeispiel hier entsprechend.In a second embodiment shown in Fig. 6 of the
Gemäß einer nicht dargestellten Abwandlung einer solchen Befestigung kann vorgesehen sein, daß statt des federnden Stiftes ein Gewindestift mit Zapfen vorgesehen ist, der vorzugsweise mittels eines Innensechskantschlüssels radial verlagerbar ist, wodurch der Zapfen mit der radialen Bohrung der Matrizenhülse ein- bzw. ausgekoppelt wird.According to a modification, not shown, of such a fastening be provided that instead of the resilient pin a threaded pin with pin is provided, which preferably radially by means of a hexagon socket wrench is displaceable, whereby the pin with the radial bore of the die sleeve is coupled or disconnected.
Fig. 7 zeigt eine vorbeschriebene Matrize 1 mit einer alternativen Befestigung. Am
Matrizengrundkörper ist hier ein Exzenterzapfen 22 mit einem Innengewinde
vorgesehen, der eine Exzentrizität zwischen Matrizenmitte und Zapfenmitte
besitzt, in eine Bohrung 23 eines Matrizenhalters 19 einsetzbar und dort mit einer
Befestigungsschraube 24 arretierbar ist. Gegenüber einem Verdrehen um die
Exzenterachse wird die Matrize 1 gesichert mittels Verdrehsicherungsstegen 25.
Im übrigen gelten die Ausführungen zum ersten Ausführungsbeispiel hier
entsprechend.Fig. 7 shows a previously described die 1 with an alternative attachment. At the
Matrizengrundkörper here is an
Der in den Ausführungsbeispielen beschriebene runde Amboß 3 kann in
Abwandlung der Ausführungsbeispiele alternative Formen besitzen.The
Claims (16)
- Die for a tool set for the mechanical joining of sheets resting one on top of the other in a planar manner by forming with at least one punch and a die which defines a cavity (2) into which joining is effected, and the die comprises an anvil (3) opposite the punch and die segments (9) which adjoin the said anvil (3), define the cavity (2) in the circumferential direction and, when the punch is being fed in the direction of the anvil (3), execute a yielding movement transversely to the punch feed direction, for which purpose the die segments (9) are arranged on a supporting surface (4) in such a way that they can be displaced outwards against spring preloading, and the die is encased circumferentially by a die sleeve (8), characterized in that the die sleeve (8), in the circumferential direction, following a division into die segments (9), has individual segment guides (10) which form guideways (11) extending through the die sleeve (8), and in which the die segments (9) are guided in a fixed manner in such a way as to be displaceable outwards as sliding pieces formed with an extension (12).
- Die according to Claim 1, characterized in that the said die is designed to be round and the guideways (11), extending outwards, of the segment guides (10) are formed by cutouts.
- Die according to Claim 1 or 2, characterized in that at least three die segments (9), which are designed as ring sections, are provided.
- Die according to one of Claims 1 to 3, characterized in that the extensions (12) of the die segments (9) have side faces (17) which extend along secant lines of the supporting surface (4).
- Die according to one of claims 1 to 4, characterized in that the supporting surface (4) is formed by a die parent body (7) having an anvil (3) arranged in the centre.
- Die according to one of Claims 1 to 5, characterized in that the die segments (9) each have a radial extent which is longer than a radial extent of the supporting surface (4).
- Die according to one of Claims 1 to 6, characterized in that all the die segments (9) are designed the same geometrically.
- Die according to one of Claims 1 to 7, characterized in that the die segments (9) are designed with a head piece (15) in the shape of a circle segment.
- Die according to one of Claims 1 to 8, characterized in that an annular spring element (5) which circumferentially surrounds the die segments (9) is provided for the spring preloading.
- Die according to Claim 9, characterized in that the die segments (9) each have a rear groove (6) which runs in the circumferential direction and into which the annular spring element (5) can be placed.
- Die according to Claim 10, characterized in that the annular spring element (5) is designed as an annular spring.
- Die according to one of Claims 1 to 11, characterized in that the die sleeve (8) is arranged with a predeterminable thickness relative to the anvil, this thickness forming an expanding-travel guide length for the die segments (9).
- Die according to one of Claims 1 to 12, characterized in that the anvil (3) is cylindrical.
- Die according to one of Claims 1 to 13, characterized in that, to fasten the die to a die holder (19), the die sleeve (8) has a hole (21) for engagement of a pin (20) which is provided on the die holder (19) and is of spring-loaded design.
- Die according to one of Claims 1 to 13, characterized in that, to fasten the die to a die holder, the die sleeve has a radial hole for engagement of a dog-point headless set screw which is provided on the die holder and can be displaced radially relative to the die sleeve.
- Die according to one of Claims 1 to 13, characterized in that, to fasten the die to a die holder (19) by means of clamping connection, an eccentric pin (22) projects on the base side on the die parent body (7), which eccentric pin (22) can be inserted into a hole (23) of the die holder (19) and can be locked therein, anti-rotation locking webs (25) fixing the die at the margin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL04007512T PL1468758T3 (en) | 2003-04-17 | 2004-03-29 | Die for a tool set for mechanical joining |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10318060 | 2003-04-17 | ||
DE10318060A DE10318060A1 (en) | 2003-04-17 | 2003-04-17 | Die for a tool set for mechanical joining |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1468758A1 EP1468758A1 (en) | 2004-10-20 |
EP1468758B1 true EP1468758B1 (en) | 2005-09-28 |
Family
ID=32892439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04007512A Expired - Lifetime EP1468758B1 (en) | 2003-04-17 | 2004-03-29 | Die for a tool set for mechanical joining |
Country Status (7)
Country | Link |
---|---|
US (1) | US7287411B2 (en) |
EP (1) | EP1468758B1 (en) |
JP (1) | JP2004314178A (en) |
AT (1) | ATE305345T1 (en) |
DE (2) | DE10318060A1 (en) |
ES (1) | ES2247570T3 (en) |
PL (1) | PL1468758T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3527299A1 (en) | 2018-02-14 | 2019-08-21 | Eckold GmbH & Co. KG | Matrix for a joining tool |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006024112A1 (en) * | 2006-05-19 | 2007-11-22 | Eckold Gmbh & Co Kg | Die for mechanical joining |
US7805971B2 (en) * | 2007-09-17 | 2010-10-05 | General Electric Company | Forging die and process |
PL2517804T3 (en) | 2008-06-27 | 2014-06-30 | Attexor Clinch Systems S A | Spring element for tools making joints of clinch type |
SE0900538A1 (en) * | 2009-04-22 | 2010-05-25 | Hans Bergkvist | Apparatus for joining two or more overlapping material parts and method for manufacturing the apparatus |
US9339899B2 (en) | 2010-11-10 | 2016-05-17 | Henrob Limited | Fastening method and apparatus |
US20130042450A1 (en) * | 2011-08-15 | 2013-02-21 | Hans R. Bergkvist | Apparatus for joining two or more overlapping material members and method for manufacturing of the apparatus |
CN102794359B (en) * | 2012-07-23 | 2014-05-28 | 苏州托克斯冲压设备有限公司 | Split-type combined plate connection concave die device |
CN103464610B (en) * | 2013-09-29 | 2016-04-27 | 苏州托克斯冲压设备有限公司 | Hooking formula hobs a connection combination concave die device |
US9718157B2 (en) * | 2014-02-21 | 2017-08-01 | Ford Global Technologies, Llc | Expanding die for clinching and riveting operations |
CN105108174B (en) * | 2015-09-21 | 2017-05-24 | 马鞍山市恒泰重工机械有限公司 | Copying lathe cutting compensation mechanism |
CN111659807B (en) * | 2020-06-12 | 2021-05-18 | 中南大学 | Method and device for butt joint of plates formed by internal high pressure |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1079541A (en) * | 1952-06-24 | 1954-11-30 | Hoover Ltd | Advanced training in dynamo collectors |
US4208776A (en) * | 1977-09-15 | 1980-06-24 | Schleicher Louis C | Punch, die and anvil set |
US4910853A (en) * | 1980-09-08 | 1990-03-27 | Btm Corporation | Apparatus for joining sheet material |
US5031442A (en) * | 1985-06-03 | 1991-07-16 | Btm Corporation | Punch anvils for sheet fastening systems |
US5131258A (en) * | 1985-06-03 | 1992-07-21 | Btm Corporation | Punch anvils for sheet fastening systems |
US5207086A (en) * | 1985-06-03 | 1993-05-04 | Btm Corporation | Punch anvils for sheet fastening systems |
US5051020A (en) * | 1989-11-13 | 1991-09-24 | Tech-Line Engineering Co. | Leak proof joint |
FR2704785B1 (en) | 1993-05-04 | 1995-07-21 | Homax Ag | Improvements to tools for the realization of assembly points of sheets by cold creep. |
SE9502587D0 (en) * | 1995-07-11 | 1995-07-11 | Attexor Equip | A tool for making joints between sheet-formed members |
EP1445059B1 (en) * | 1998-10-16 | 2009-04-29 | Profil Verbindungstechnik GmbH & Co. KG | Function element, particularly fastening element and assembly part consisting of the function element and a sheet plate |
SE9904167D0 (en) * | 1999-11-16 | 1999-11-16 | Attexor Equip | Atool for joining two or several overlaying sheet formed members |
US6785959B2 (en) * | 2002-08-15 | 2004-09-07 | Btm Corporation | Tool assembly employing a flexible retainer |
-
2003
- 2003-04-17 DE DE10318060A patent/DE10318060A1/en not_active Withdrawn
-
2004
- 2004-03-29 AT AT04007512T patent/ATE305345T1/en not_active IP Right Cessation
- 2004-03-29 EP EP04007512A patent/EP1468758B1/en not_active Expired - Lifetime
- 2004-03-29 PL PL04007512T patent/PL1468758T3/en unknown
- 2004-03-29 ES ES04007512T patent/ES2247570T3/en not_active Expired - Lifetime
- 2004-03-29 DE DE502004000071T patent/DE502004000071D1/en not_active Expired - Lifetime
- 2004-04-15 JP JP2004120935A patent/JP2004314178A/en active Pending
- 2004-04-16 US US10/826,661 patent/US7287411B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3527299A1 (en) | 2018-02-14 | 2019-08-21 | Eckold GmbH & Co. KG | Matrix for a joining tool |
Also Published As
Publication number | Publication date |
---|---|
EP1468758A1 (en) | 2004-10-20 |
US7287411B2 (en) | 2007-10-30 |
JP2004314178A (en) | 2004-11-11 |
ES2247570T3 (en) | 2006-03-01 |
PL1468758T3 (en) | 2006-02-28 |
ATE305345T1 (en) | 2005-10-15 |
DE10318060A1 (en) | 2004-11-18 |
DE502004000071D1 (en) | 2005-11-03 |
US20040261486A1 (en) | 2004-12-30 |
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